Ann Intern Med October 2009 PMID 19652172

Facemasks and hand hygiene to prevent influenza transmission in households: a cluster randomized trial.

Benjamin J Cowling, Kwok-Hung Chan, Vicky J Fang, Calvin K Y Cheng, Rita O P Fung, Winnie Wai, Joey Sin, Wing Hong Seto, Raymond Yung, Daniel W S Chu, Billy C F Chiu, Paco W Y Lee, Ming Chi Chiu, Hoi Che Lee, Timothy M Uyeki

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Mentions

277
Peak: 31 in Dec 2022
across 5 sources since Apr 2020

Extended reach

1,006,118
potential audience

Total likes

278

Video views

1,434

Mentions per month

Apr 2020 – Nov 2025

Where it's discussed

  • X / Twitter196 posts
  • News60 articles
  • Blogs10 articles
  • Facebook9 posts
  • YouTube2 videos

AI synopsis

What people are saying

The overall tone suggests skepticism about the effectiveness of masks and hand hygiene in preventing influenza, supported by references to multiple studies such as Cowling 2009, which many posts cite to argue that the benefits are statistically insignificant or nonexistent. Words like 'no benefit,' 'disingenuous,' and phrases like 'most studies show' reveal a tone of doubt, while mentions of specific research examples demonstrate high interest but modest engagement, indicating that people are interested but not deeply debating the scientific details.

AgreementLow agreement

Most discussions highlight that scientific studies, including the cited trial, show little to no benefit of masks and hand hygiene in preventing influenza spread, leading to a slight disagreement with traditional beliefs.

InterestHigh interest

Many posts demonstrate high interest, referencing multiple studies and expressing skepticism or curiosity about the research findings.

EngagementNeutral engagement

The engagement level appears moderate, with some users critically discussing methodologies and interpretations, but many posts are more about sharing opinions or citations rather than deep analysis.

ImpactLow impact

The overall influence seems limited, as users mostly express skepticism or dismiss the efficacy claims, indicating the publication hasn't caused a significant shift in beliefs or practices.

Abstract in brief

  • The study investigates the effectiveness of hand hygiene and facemasks in preventing household transmission of influenza among 407 patients with influenza-like symptoms in Hong Kong.
  • The trial involved 259 households and compared three groups: control with lifestyle education, hand hygiene alone, and surgical facemasks combined with hand hygiene.
  • Results showed that while hand hygiene appeared to reduce transmission rates, the differences weren't statistically significant, though quicker interventions post-symptom onset did lead to better outcomes, particularly with the use of facemasks.

Top posts

Most liked on X and Bluesky
Carol Roth
@caroljsroth · X

First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “experts”. https://t.co/ANy5bWyhhI; https://t.co/XqlwDQtRrW; https://t.co/Gu8dyfdtTl

Dec 29, 2020 · 114 likes · 25 shares · 210,169 followers View post →
Making Waves
@MakingC19Waves · X

ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 14, 2022 · 21 likes · 10 shares · 3,166 followers View post →
BrendanEich
@BrendanEich · X

Dec 15, 2022 · 18 likes · 3 shares · 192,460 followers View post →
Nypon
@nypon5 · X

@anderslindberg Det är helt enkelt inte sant. Hur mycket sars-cov-2 som faktiskt överförs via händer och hur mycket handtvätt hjälper är osäkert som allt annat. https://t.co/i3Gi9kvbLo https://t.co/xsEdgZNQnn https://t.co/GXJPhHI2hQ https://t.co/jSlUiwArcx

Nov 23, 2020 · 13 likes · 165 followers View post →
FFAC
@stevelanebitch · X

6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/wK5c064hUN

Nov 13, 2020 · 12 likes · 3 shares · 5,334 followers View post →
FFAC
@stevelanebitch · X

6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/wK5c064hUN

Jan 31, 2021 · 10 likes · 9 shares · 5,334 followers View post →

All mentions

ヨコハ魔の怪人
@BC_Phantom · X

RT @hanakihideaki: インフルエンザの手指感染は都市伝説? Facemasks and Hand Hygiene to Prevent Influenza Transmission in Households: A Cluster Randomized Tria…

Nov 5, 2025 · 2 shares · 350 followers View post →
Adlay
@Adlay8766 · X

RT @hanakihideaki: インフルエンザの手指感染は都市伝説? Facemasks and Hand Hygiene to Prevent Influenza Transmission in Households: A Cluster Randomized Tria…

Nov 5, 2025 · 2 shares · 116 followers View post →
花木秀明
@hanakihideaki · X

インフルエンザの手指感染は都市伝説? Facemasks and Hand Hygiene to Prevent Influenza Transmission in Households: A Cluster Randomized TrialFREE Publication: Annals of Internal Medicine.Volume 151, Number 7 https://t.co/1YewY7JekW

Nov 4, 2025 · 4 likes · 2 shares · 57,544 followers View post →
John ✈️
@JohnXADX · X

@MasterB58520860 @TequilayJack @raphaellimasp Mais um estudo do Cowling, acho que é aquele quinto na lista. "Hand hygiene and facemasks seemed to prevent household transmission of influenza virus when implemented within 36 hours of index patient symptom onset." https://t.co/OUrZVLX3QP

Mar 20, 2025 · 287 followers View post →
Daisy
@digidigidaisy · X

@zOjzQ8sS9mqZ5yQ そこから読み違えてんのか メタ解析論文とはお前が貼ったこれ https://t.co/VJDy21bo5E サブグループ解析とはメタ解析論文で引用9されてたこれのサブグループ解析部分 https://t.co/3KHl5K6cqL メタ解析論文内の結論がこれ。サブ解析の有意差があった結果から導かれた表記があるってことだ https://t.co/faNsp7Squp

Nov 29, 2024 · 625 followers View post →
Scott Summers
@J_Jammer · X

@ZerdatheFennec @awkward78190 @Chickie31976 @rp_kearney "A number of studies have shown the inefficacy of the surgical mask in household settings to prevent transmission of the influenza virus" https://t.co/tUkdcvThW4

Nov 22, 2024 · 893 followers View post →
JohnHowardRoark
@JohnHowardRoar1 · X

@BHudsonWrites @JoshWalkos @BillDoesStuff2 @Spartan1Tim @LatheGrain 2) https://t.co/Jt0sxlZqhd

Jul 15, 2024 · 1 like · 126 followers View post →
Filípides
@FilipidesE · X

@KasnyScience @Placeb0Mad Mira, uno de 2009. Hablando solo de la gripe. Facemasks and hand hygiene to prevent influenza transmission in households: a cluster randomized trial. AU Cowling BJ, Chan KH, Fang VJ, Cheng CK, Fung RO, Wai W, Sin J, Seto WH, Yung R, Chu DW, Chiu BC, Lee PW, Chiu MC, Lee HC,

Feb 5, 2024 · 6,387 followers View post →
omphaloskepsis
@fammi_ridere · X

@PipiLocuaz @Monica_Garcia_G @sumar Esto le puede interesar https://t.co/pOQYklJFTj

Jan 11, 2024 · 1,269 followers View post →
omphaloskepsis
@fammi_ridere · X

@elgatomimo @00Bohr @Monica_Garcia_G Otro ejemplo. ¿Cual es la evidencia científica que apoya su punto de vista? https://t.co/pOQYklJFTj

Jan 10, 2024 · 1,269 followers View post →
omphaloskepsis
@fammi_ridere · X

@rafaposo @_Mecanico_3 @FelixLopez_Rey Los artículos científicos no parecen estar de acuerdo con usted https://t.co/pOQYklJFTj

Jan 9, 2024 · 1,269 followers View post →
omphaloskepsis
@fammi_ridere · X

@rafaposo @_Mecanico_3 @FelixLopez_Rey Otro https://t.co/pOQYklJFTj

Jan 9, 2024 · 1,269 followers View post →
Eaterofw0r1ds
@tittiessssssss · X

@bippitygiggity @ivor_mectin @PeteUK7 Here's one. https://t.co/9AcbZQV8VK

Dec 29, 2023 · 147 followers View post →
Paul M
@PaulM39588795 · X

@Yashn37 @LechapardeurS @nicolasberrod https://t.co/Bbox9bhQkP : Ce n’est pas une étude sur les masques, mais sur hygiène masque + mains… avec un conclusion, peu concluante « seems to »

Dec 12, 2023 · 64 followers View post →
Yashn
@Yashn37 · X

@PaulM39588795 @LechapardeurS @nicolasberrod Je vous ai donné le lien direct vers les références utilisées dans votre article. Voilà un exemple d'études référencées contredisant les conclusion de l'article : - https://t.co/jpqq0kfJ5L - https://t.co/53M3LDTaJB https://t.co/zDySSMv6pR

Dec 12, 2023 · 774 followers View post →
Maree Jaeger (PM for dark chocolate)
@Mareethalassa · X

@somegalgirl @maosbot https://t.co/TmNdqGaNLq Taiwan

Dec 5, 2023 · 3,552 followers View post →
Maree Jaeger (PM for dark chocolate)
@Mareethalassa · X

@somegalgirl @maosbot https://t.co/TmNdqGaNLq

Dec 5, 2023 · 3,552 followers View post →
joNASTY
@AnarchJo · X

@PoliticPositive @EJR1138 @Sentient_Atoms @BenjaminPDixon For the record, I am not claiming that masks increase transmissions. This is just to show silly it is to use statistically non significant results in either direction. RCT https://t.co/a1fnXpKJLu Real World https://t.co/vTLf1Qzc4a

Sep 26, 2023 · 486 followers View post →
Susan
@UnMaskd_Truth · X

@TactNowInfo @DrEvaBernat @CorsIAQ Yes, when you combine masking with effective interventions, you can disguise their ineffectiveness, but a closer look (comparing results of ‘masks + HH’ to ‘HH only’) suggests that masks may actually reduce the beneficial effect of hand hygiene. https://t.co/uxXsloyrWo

Sep 18, 2023 · 413 followers View post →
Anatoly Lubarsky
@anatoly · X

@veganaiZe >>Please point me to them... I did a fair amount of searching and was only able to find the one.<< You could find only one?

Sep 3, 2023 · 5,649 followers View post →
Jonjo Minns
@jonjominns · X

[3] Wang, Y., et al. (2020). Facemasks and hand hygiene to prevent influenza transmission in households: a cluster randomized trial. Annals of Internal Medicine, 173(10), 757-766. 21/25

May 26, 2023 · 6,381 followers View post →
Shane Anderson
@shanewendi · X

@annwmac @Tim_Bousquet @MacdonerE A CDC randomized controlled trial showed, “No additional benefit was observed when facemask [use] was added to hand hygiene by comparison with hand hygiene alone.” https://t.co/2mTCXcZEmp

May 7, 2023 · 414 followers View post →
VICENTE - Studio V
@vicente_team · X

@Adam_Creighton at least, mask effectiveness is not demonstrated. masking comes with risk. We need to think what globalist want us to get through masking. vaccine information wasn't true. Information is weapon. https://t.co/TcbL9Fo89m

Dec 18, 2022 · 108 followers View post →
VICENTE - Studio V
@vicente_team · X

@jinpeiishii https://t.co/TcbL9FnAjO

Dec 17, 2022 · 108 followers View post →
Bellpudding
@19mama · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 17, 2022 · 10 shares · 701 followers View post →
happy alien
@happy_alien77 · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 17, 2022 · 10 shares · 11,350 followers View post →
Rick
@Rick_42_ · X

RT @BrendanEich:

Dec 16, 2022 · 3 shares · 1,298 followers View post →
leigh
@leigh0x1A4 · X

RT @BrendanEich:

Dec 16, 2022 · 3 shares · 660 followers View post →
potedolce
@potedolce_ · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 16, 2022 · 10 shares · 620 followers View post →
Ryoshi
@ryoshis_son · X

RT @BrendanEich:

Dec 15, 2022 · 3 shares · 3,861 followers View post →
BrendanEich
@BrendanEich · X

Dec 15, 2022 · 18 likes · 3 shares · 192,460 followers View post →
Gengo
@Gengo87368205 · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 15, 2022 · 10 shares · 91 followers View post →
Pete Meehan
@apmeehan · X

@VPrasadMDMPH Hi Dr Prasad, I share your concern about medical misinformation. On that note, when can we expect to see the correction for your recent misrepresentation of this study? https://t.co/rpL0DeP2PK https://t.co/Q1MIDqs5O1

Dec 15, 2022 · 112 followers View post →
Pete Meehan
@apmeehan · X

@VPrasadMDMPH Hi Dr Prasad. Since you clearly value honesty and accountability in medical and public health reporting, when can we expect to see the correction for your recent glaring misrepresentation of this study? https://t.co/rpL0DeP2PK https://t.co/cvYlRuKgtO

Dec 15, 2022 · 1 like · 112 followers View post →
Motorhead4907
@Motorhead4907 · X

Here's the study that showed surgical masks and N95s did not prevent viral infection. https://t.co/fcqGtM3Jb5 https://t.co/WHXsqVbTDe

Dec 15, 2022 · 77 followers View post →
☺︎ ⑧pizza ☺︎
@o8pizza · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 15, 2022 · 10 shares · 969 followers View post →
VICENTE - Studio V
@vicente_team · X

https://t.co/TcbL9Fo89m Mask is effective? NOT DEMONSTRATED. Hand hygiene and use of facemasks are key elements of influenza pandemic preparedness plans, but their effects on preventing transmission of infection have not been demonstrated. https://t.co/wmyyAue6ky

Dec 14, 2022 · 1 like · 108 followers View post →
VICENTE - Studio V
@vicente_team · X

@nytimes is now spreading fake information again regarding masking effectiveness because their resource (https://t.co/TcbL9FnAjO) show "the differences compared with the control group were not significant." Don't trust NY TIMES. https://t.co/XyT7g49fBJ

Dec 14, 2022 · 108 followers View post →
VICENTE - Studio V
@vicente_team · X

@nytimes is now spreading fake information again regarding masking effectiveness because their resource show "the differences compared with the control group were not significant." Don't trust NY TIMES. (https://t.co/TcbL9FnAjO) https://t.co/XyT7g49fBJ

Dec 14, 2022 · 108 followers View post →
はとし
@hat4desu · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 14, 2022 · 10 shares · 261 followers View post →
KIKI
@kiki_tter · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 14, 2022 · 10 shares · 228 followers View post →
さよ
@sayosayono · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 14, 2022 · 10 shares · 742 followers View post →
Black Mages Matter(Lit/Fire/Ice)
@blackmage1984 · X

@vdubs90 @VPrasadMDMPH @nytimes The RCT in question can be found here: https://t.co/DucAPrXd4U The results of the RCT don’t favor masks as Vinay pointed out. https://t.co/W64zvEvprw

Dec 14, 2022 · 1 like · 436 followers View post →
大和
@cadiller2007 · X

RT @MakingC19Waves: ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 14, 2022 · 10 shares · 1,464 followers View post →
Making Waves
@MakingC19Waves · X

ニューヨークタイムズのマスクの感染予防効果の「強いエビデンス」はマスク着用者と非着用者がインフル感染に有意差無しRCTです

Dec 14, 2022 · 21 likes · 10 shares · 3,166 followers View post →
Goodbye Cuomo Forever
@bri_guy_ny · X

@MaudMaron You're amplifying a guy who is straight up lying. The linked study DID find masks to be effective: "Hand hygiene and facemasks seemed to prevent household transmission of influenza virus when implemented within 36 hours of index patient symptom onset." https://t.co/a2UR65gOMW

Dec 14, 2022 · 4 likes · 5,171 followers View post →
Dadx2
@Dave99117584 · X

@biello_joseph @boulderfish https://t.co/Noi1pAyNrI

Dec 14, 2022 · 1 like · 255 followers View post →
Heidi Liberty
@heidi_liberty76 · X

@MeiselZachary @VPrasadMDMPH @nytimes I think the Dr focused on the wrong thing and failed to address the key issue with this study in shoeing masking us effective. https://t.co/FPHWfSNpER https://t.co/8sYBeLaveK

Dec 14, 2022 · 3,121 followers View post →
Pete Meehan
@apmeehan · X

@VPrasadMDMPH @MartinKulldorff @nytimes Link to the study, for anyone else who wants to check: https://t.co/rpL0DeP2PK

Dec 14, 2022 · 112 followers View post →
Marcos Boyington
@iBringBalance · X

@glake7777 @VPrasadMDMPH @nytimes It's @ https://t.co/aHTWQaQAw9 I will absolve some blame from @nytimes in that the conclusion of the study is disingenuous But maybe they shouldn't be playing referring to studies they don't understand

Dec 14, 2022 · 1 like · 1,086 followers View post →
LibKey
@libkey_io · X

@phytools_liam @VPrasadMDMPH Help your colleagues avoid a paywall by accessing the article from their libraries: https://t.co/8YQoMV4xrO Simply add https://t.co/SXSePSX5De to the DOI URL when sharing articles on Twitter and everywhere else!

Dec 14, 2022 · 553 followers View post →
Liam Revell
@phytools_liam · X

#ScienceJournalism. Here's the actual study: https://t.co/RllSPO2pLg. Credit to @VPrasadMDMPH for bringing this to my attention.

Dec 14, 2022 · 1 like · 10,131 followers View post →
TruMemes.com
@TruMemes · X

@tangleroc @vlal42 https://t.co/7tqDqvxUw6 There are thousands of studies that show masks don't stop, prevent, or even slow airborne infections disease

Dec 12, 2022 · 26 followers View post →
Susan
@UnMaskd_Truth · X

@majken @DailyJLee @DOCDUBE @AlexMunter @CHEO the study did consider 7 RCTs of mask use in the community all of which found no significant effect of mask use alone. You can find the links for those RCTs in Table 1 of the meta-analysis linked above. I would also suggest this RCT (https://t.co/uxXsloyrWo) as it shows why 2/3

Nov 19, 2022 · 413 followers View post →
Susan
@UnMaskd_Truth · X

@rational_matt @joeolivermd This study (https://t.co/uxXsloyrWo) shows why we need RCTs as other variables can confound the results - if you look closely at the results (tables 3 and 4) you see that adding masks (masks + hand hygiene) increased the risk of infection compared to hand hygiene alone. 3/3

Nov 14, 2022 · 413 followers View post →
Susan
@UnMaskd_Truth · X

@SteveT84323800 @GregBur41977843 @JeromeAdamsMD @JuliaHB1 This study (https://t.co/uxXsloyrWo) shows why we need RCTs as other variables can confound the results - if you look closely at the results (tables 3 and 4) you see that adding masks (masks + hand hygiene) increased the risk of infection compared to hand hygiene alone. 4/4

Nov 14, 2022 · 413 followers View post →
Susan
@UnMaskd_Truth · X

@LMMomTo2 @JohnWKowal1 @BrianB5000 @StefiChrisNYC @nationalpost - the masks showed negative efficacy! Here is the study (https://t.co/uxXsloyrWo) - please look at it and especially the tables that compare the results... It is not narcissism, it is frustration. 6/6

Nov 12, 2022 · 413 followers View post →
SocialistLorax
@SocialistLorax · X

@ForYoursel @therealgloria @nytimes https://t.co/HytNFzpQXx https://t.co/TS2LpU9YPG https://t.co/wgHyYFoxjs

Nov 10, 2022 · 1 like · 1,083 followers View post →
Unconcerned Scientist
@OvertonBorehole · X

@JoeOhara93 @Nesta44383604 @TimRunsHisMouth https://t.co/jJ2RQ48wv2 https://t.co/4dvLqDp3St https://t.co/j9a1eNLzlN https://t.co/CJ3sHk3nSG https://t.co/uTKEqfORf3 https://t.co/9vMIVM7Xhq https://t.co/iUkkkRDt3x https://t.co/p0ybz8M6NX

Oct 30, 2022 · 664 followers View post →
cinnamonization
@cinnamonization · X

@ShellyMBoulder The pdf link is broken, here is a working one (official web page, no download) Facemasks and Hand Hygiene to Prevent Influenza Transmission in Households : A Cluster Randomized Trial https://t.co/hfCMY68evx

Oct 12, 2022 · 1 like · 579 followers View post →
joNASTY
@AnarchJo · X

@Juniber10 @LaraASchroeder @solids3000o8 @NobodyQueens @MetisLForsythe @uwinnipeg @umanitoba My fault. I just assumed you had to be a girl by the way you were acting. Please thrill us with your analysis: https://t.co/UHlcMLD2vh https://t.co/qNH1zKpNrM https://t.co/l6SnTN9O4J https://t.co/a1fnXpKJLu https://t.co/Vltr5cb1Bs

Sep 8, 2022 · 486 followers View post →
François ex citoyen Francais
@Francois_libre · X

RT @JohnHowardRoar1: @DrJBhattacharya They do a good job of ignoring their own research. Here's a study by Benjamin Cowling, funded by the…

Aug 22, 2022 · 5 shares · 2,258 followers View post →
Aphorist
@People1stPlanet · X

RT @JohnHowardRoar1: @DrJBhattacharya They do a good job of ignoring their own research. Here's a study by Benjamin Cowling, funded by the…

Aug 22, 2022 · 5 shares · 2,779 followers View post →
JohnHowardRoark
@JohnHowardRoar1 · X

@DrJBhattacharya They do a good job of ignoring their own research. Here's a study by Benjamin Cowling, funded by the CDC, that found no benefit from masks in preventing influenza. https://t.co/Jt0sxlHh35

Aug 21, 2022 · 10 likes · 5 shares · 126 followers View post →
Airgami - Origami Mask
@Air99_LLC · X

@sri_srikrishna @AbraarKaran @RanuDhillon https://t.co/hvVZpq6oYW to be diagnosed with the illness if they properly combined mask use with hand washing. In a 2012 study https://t.co/hvVZpq6oYW, University of Michigan researchers determined that students who wore masks in residence halls and practiced good ... (2/3)

Aug 17, 2022 · 1 like · 2,350 followers View post →
LepsLair is making content
@lepslair · X

@SloopyTexas @DrillMeaton @CMH_2019 @district12kitty @DrLeanaWen @mclemoremr @Bob_Wachter @DrPaulOffit Yea, and some of those are cited there. Both cited as yes they work if done in a short amount of time after exposure. https://t.co/6Jvp6BcjAJ https://t.co/bYUfDAYE0Q

Jul 15, 2022 · 1 like · 66,913 followers View post →
JohnHowardRoark
@JohnHowardRoar1 · X

@aussagekraft @aginnt https://t.co/Jt0sxlHh35

Apr 13, 2022 · 2 likes · 126 followers View post →
JohnHowardRoark
@JohnHowardRoar1 · X

@aussagekraft @aginnt https://t.co/hy3c91wsFg https://t.co/Jt0sxlHh35

Apr 13, 2022 · 3 likes · 126 followers View post →
JohnHowardRoark
@JohnHowardRoar1 · X

@DrLeanaWen Randomized controlled trials consistently fail to show a benefit from masks. Here's one of them, funded by the CDC: https://t.co/Jt0sxlHh35

Apr 13, 2022 · 126 followers View post →
Caleb N. Diffell
@calebdiffell · X

@CarpathianMts @jbusher @ostrachan https://t.co/prrh9PCbBk

Mar 3, 2022 · 217 followers View post →
Callan
@callanswag2 · X

@moderconserv79 @reddyred7712 @GovKathyHochul If you say so: https://t.co/RbqkCAkA5w

Jan 26, 2022 · 650 followers View post →
Josh Monday
@luvdacanes · X

@FormulaOof @RobAstorino https://t.co/H33C3yoMHT

Jan 25, 2022 · 390 followers View post →
freedom_2021
@freedom20216 · X

@jaybyrdbird @vivalaliberta2 @JoshShapiroPA Article 1: https://t.co/uLCg6vknz2

Jan 20, 2022 · 185 followers View post →
Sebastian Castillo
@castillobuiles · X

@FGarridoB @Akustronique Este? https://t.co/C2Mw10fdPO

Dec 29, 2021 · 511 followers View post →
sheeee
@sheeee63660239 · X

@3iQDXqGxaLzMTlL @QuickToshi @74el4Un5zLDWevf おまえこれのメタ解析に使われたランダム化比較試験がどれかわかってんの?ww おれが出したやつじゃねえかww 手指衛生だけの群とマスク追加でつけても有意差なかったやつじゃねえかwww引用論文くらいなにがあるか見てから出せよwwww https://t.co/CGbM9I2tQM

Dec 16, 2021 · 68 followers View post →
sheeee
@sheeee63660239 · X

@Jimo0404 @74el4Un5zLDWevf @3iQDXqGxaLzMTlL これは50歳以下だと効果はなくて、75パーが着用した村は賞金がでて、しかも採血は症状あった人の4割だけしか実施してない かの有名なRCTですかww しかもこれひとつだけww マスクに差がないものはいっぱいあるねwwww https://t.co/eVIxipc4n7 https://t.co/CGbM9I2tQM https://t.co/eklw4J7wSI

Dec 16, 2021 · 68 followers View post →
sheeee
@sheeee63660239 · X

@QuickToshi @74el4Un5zLDWevf @3iQDXqGxaLzMTlL はいはいwww 苦しいねwww もうそうあってほしいって希望にすがりついてるだけじゃんww まさかにサンクコスト効果www マスクつけても追加のメリットなしwww手洗いをしっかりしようねwww https://t.co/eklw4J7wSI

Dec 16, 2021 · 68 followers View post →
sheeee
@sheeee63660239 · X

@74el4Un5zLDWevf @saburota_tamaki @3iQDXqGxaLzMTlL @t141421356m https://t.co/sKUCKqB1j4 https://t.co/CGbM9I2tQM https://t.co/eVIxipc4n7 たくさんRCTはあるんだwww おまえがメタ解析のRCTをいつまでも読んでないだけだろwww

Dec 15, 2021 · 68 followers View post →
John Connor: Always Right
@John37866 · X

@BoiTinnie @ellymelly No. There’s no high quality evidence that masks protect others. https://t.co/50nFtyNg5o https://t.co/7mDZyg6EAE https://t.co/tTPIPnhx83

Dec 14, 2021 · 356 followers View post →
Itchy Dawg
@itchy_dawggg · X

@Schuchwun @MarkSlapinski @BigSpicy93 https://t.co/RitIXrzceF https://t.co/rg1u3mV3TS https://t.co/BNryIjkb8t https://t.co/h3n3uaVHWM https://t.co/nKSsFGPWWS https://t.co/CU8DDXkNeK

Nov 20, 2021 · 3,826 followers View post →
James Pitt
@Sahelanth · X

@contrarian4data @boutros555 @JHowardBrainMD @pudgenet @DACDAC4DAC The paper you discuss isn’t an RCT. It’s a fishing expedition in data from RCTs, with a cute post-hoc hypothesis on a probably nonexistent effect. https://t.co/w5S2I3KnY2 https://t.co/8Vcn8viyyk The RCTs themselves are interesting. https://t.co/5pOUFNa1aD https://t.co/3qlHLCd2pU

Oct 28, 2021 · 1,594 followers View post →
Zero Wing
@zerowing0 · X

Empathy is when you tell a workingman what to do and he does it. Masks don't work. https://t.co/tpAOJbXFxF https://t.co/06HjfrQqnu https://t.co/sHAejT1O69 https://t.co/61bocK1qpx

Oct 19, 2021 · 892 followers View post →
Free Speech
@Free___speech · X

@ale_22689 @jasonrantz #5. 2009 study found that washing hands and wearing mask beat control in one measure & that only washing hands with no mask beat the control group in 2 measures. No additional benefit was observed using a mask with hand washing verses only hand washing. https://t.co/QfZULqaobb

Oct 18, 2021 · 312 followers View post →
MazeSlays
@MazeSlays · X

@apropoofnothing @Toronto99News @Christo92634012 2009...... I've been here already. https://t.co/tyJ9zLF8VN

Sep 25, 2021 · 113 followers View post →
Show Your Work
@showusyourwork · X

@DBrassiere That thread contains absolutely no objection, only urged caution in waiting for more studies. But there's plenty of mask-effectiveness RCT evidence with other infections including other coronaviruses: https://t.co/QLctbBuMvC https://t.co/xSbwlmmA18 https://t.co/x6WCiyoW2S

Sep 20, 2021 · 5,542 followers View post →
Peter
@All_FactsMatter · X

@arneduncan Imagine commenting on face masks and not being familiar with the randomized controlled trials on face mask efficacy against influenza like illness. Apparently Arne Duncan is ignorant of "the science" regarding face masks. https://t.co/zqhDnpyqEX

Aug 29, 2021 · 1,815 followers View post →
Fairbrit
@wealdengirl · X

2009 study by CDC says hand-washing beats MASKS for slowing spread of a disease. In fact, everything we are told about masks preventing spread is untrue. https://t.co/Yn6FwYEQLj

Aug 23, 2021 · 5,216 followers View post →
Brutorr_
@brutorr_ · X

RT @PBlanrue: Une étude financée par les CDC en 2009 à Hong Kong par Cowling et al. entre des groupes "mains lavées "et "avec masque" a fai…

Aug 17, 2021 · 1 share · 23 followers View post →
Paul-Éric Blanrue
@PBlanrue · X

Une étude financée par les CDC en 2009 à Hong Kong par Cowling et al. entre des groupes "mains lavées "et "avec masque" a faire conclure à Canini : "aucun avantage supplémentaire n'a été observé lorsque le masque facial a été ajouté à l'hygiène des mains". https://t.co/XltC7IGiEQ

Aug 17, 2021 · 8 likes · 1 share · 31,472 followers View post →
Krebiozen
@krebiozen · X

@Tony__Heller @SkepticalMutant @Lam37820433 @mcfunny @provaxtexan @jbcoots3 @AndrewLazarus4 @DomIsa6 @Bass4Life5 @FPLMISF @TonyBaduy @TakethatCt @BoastIra @WhoIsSabala @MrDarcy1815 @yeahnaa333 @GeoffSchuler @EstesPga @GenxlF @AGTCnews @Kathmarval @chickaboy @RHMcK1 @crabb_vicki @anthonycookppc @doritmi @_mamadeb @BrynRichards9 @SeriousSkeptic @joltdude @ChrisHaworth368 @covidcattle1 @swedishchf @WendyOrent @rf121rf @omotforest @plantmann_1 @CurfewX @MsTrixter @meritocracy_ftw @ScienceNFreedom @FormerAntivax @ZaBong69 @Michael63746953 @DK25769559 @BruceFo43322941 @RadioColor @BigBopp75348974 @MarioMoney23 Most of those studies looked at whether mask-wearing protected the wearer against influenza. Those that looked at protecting others found some effect, e.g. this one found a 67% reduction in flu transmission from infected wearing masks plus hand hygiene. https://t.co/zQnHX1xCBG

Aug 14, 2021 · 4 likes · 954 followers View post →
John Connor: Always Right
@John37866 · X

@zebra3V1 @richardursomd Yeah, no evidence of that either. https://t.co/7mDZyg6EAE … https://t.co/Yhraw4DRzo https://t.co/50nFtyNg5o …

Aug 14, 2021 · 356 followers View post →
Cole Dial
@ColeDial · X

2009 CDC Funded Study Re. Masks: “No additional benefit was observed when facemask [use] was added to hand hygiene by comparison with hand hygiene alone.” https://t.co/Bp3QwGAqTb

Aug 12, 2021 · 53 followers View post →
Ben Cowling
@bencowling88 · X

@RThinner @jimbrownisdead @JCOviedo6 Yes I can show you my own RCT which was consistent with an effect of face masks on influenza transmission (and also consistent with no effect...) https://t.co/KjVHdSrHvj I am someone who actually does scientific research on masks

Aug 12, 2021 · 1 like · 32,577 followers View post →
Krockman
@Krockman · X

@TheFeiler @ron_psimas @drsimonegold Cowling et al. 2009 https://t.co/cqUsiksqS1 https://t.co/lC9TvxFji8

Aug 10, 2021 · 558 followers View post →
John Connor: Always Right
@John37866 · X

@AnnastaciaMP So last time we addressed the effect of masks for the wearer. Lesson two will be the evidence for masks protecting others: https://t.co/7mDZyg6EAE … https://t.co/paGbMOXnjt https://t.co/50nFtyNg5o … Result: There is no good quality evidence which demonstrates this.

Aug 1, 2021 · 356 followers View post →
Peter
@All_FactsMatter · X

@ScottAdamsSays Mask MANDATES are ineffective against infectious respiratory disease. There are numerous peer reviewed studies documenting this. https://t.co/McCK5t4xtY https://t.co/WJY7lyL0aI https://t.co/sjQK5jgLJ1 https://t.co/wVzQSvKPvE

Jul 28, 2021 · 2 likes · 1,815 followers View post →
scott
@scott08067104 · X

@FhjfFreym @RadiantHK @fangshimin 内科学年鉴《Annals of Internal Medicine》2009年的一篇研究文章得出的一个结论是,戴口罩+保持手的卫生与不戴口罩+保持手的卫生,针对预防流感病毒感染无显著差异 https://t.co/YeISGC0WqP

Jul 27, 2021 · 3 likes · 16 followers View post →
Crash Davis
@Crashdavis565 · X

@simonkuo @The_OtherET https://t.co/6wZu8TeqPN

Jul 25, 2021 · 339 followers View post →
Crash Davis
@Crashdavis565 · X

@The_OtherET https://t.co/6wZu8TeqPN

Jul 25, 2021 · 339 followers View post →
Desperate Dan
@Despera62504054 · X

@ChrisNicholsNFI @AliceGlencross @SKMorefield @ijclausen I just took a random study and read it. Quote is above Here’s the link: https://t.co/psWZeo6Ykq. It’s not perfect because of the gap between realizing they’re sick, becoming part of the study, as well as sticking with the PPE wearing. Still there is a positive effect.

Jul 18, 2021 · 28 followers View post →
PunishedLenny (its over lmao)
@LennyPunished · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Jul 17, 2021 · 25 shares · 288 followers View post →
Joe
@JoeC1776 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Jul 17, 2021 · 25 shares · 9,880 followers View post →
BertsPost.com
@bertspost · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Jul 17, 2021 · 25 shares · 1,248 followers View post →
Maximum Weeb Bronze Age Autist
@rajm2016 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Jul 5, 2021 · 25 shares · 3,243 followers View post →
Stephen Brasowski
@SBrasowski · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Jul 4, 2021 · 25 shares · 4 followers View post →
AXXIIIK
@OpDracula · X

@andrewbostom @ianmSC @TracyBethHoeg @Melinda01212917 @Hold2LLC @CDCgov @MonicaGandhi9 @DrDanielJohnson @nytimes Here are the findings from Cowling (2009): https://t.co/wwiCS9VM58 https://t.co/mCG2dZ8wBf

Jun 9, 2021 · 148 followers View post →
b9n10nt
@b9n10nt · X

@mowiltshire @quesogrande1970 @DKThomp https://t.co/Wn7qKGQQ4f

May 21, 2021 · 144 followers View post →
ashisonthefloor
@polishmedtea · X

@Wikunis @AtheistPolish @FLOVEMAIS https://t.co/h0wKB75cdm https://t.co/9VYDcai47d https://t.co/kyLYg6Xy1a https://t.co/tivVhyIQmu https://t.co/MjfVaDSCqv https://t.co/1Ev3pQ08CW Nic?

May 11, 2021 · 727 followers View post →
Dukakis Gaming
@RealDukakisism · X

@El_Sausage @kaarthiksanta @LifeAdventureN1 @KTaylor42069 @mnhealth Here’s three. https://t.co/VQtiwB1Mrv https://t.co/StQh4qSJxH https://t.co/ZPg6ON6Km2

Apr 24, 2021 · 551 followers View post →
Anatoly Lubarsky
@anatoly · X

@FalconNittany @imfatnstupid @ScottAdamsSays https://t.co/TvhwWSY4nq https://t.co/XdsfXWKe4s https://t.co/BndUKAdwKF

Apr 19, 2021 · 1 like · 5,649 followers View post →
Anil Ahuja
@anilahuja12345 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Apr 18, 2021 · 25 shares · 1,264 followers View post →
Deva Masto
@vishal_klc · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Apr 18, 2021 · 25 shares · 1,157 followers View post →
Vikas Chauhan kashyap
@Vikas47747578 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Apr 17, 2021 · 25 shares · 852 followers View post →
Varun Goel
@varung123 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Apr 17, 2021 · 25 shares · 6,446 followers View post →
Save Thesinner
@armjamlee · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Apr 17, 2021 · 9 shares · 3,734 followers View post →
Krockman
@Krockman · X

@KarnRulez @KC593 @yuriboler “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/qXQ3kw6SB2

Apr 11, 2021 · 558 followers View post →
Filly Sool
@SillyFool11 · X

@DaveC72359533 @ThatJMW @LBC From Cowling BJ (2009)... https://t.co/mYVJK5ZP4M https://t.co/pwQPHy3brx

Mar 28, 2021 · 118 followers View post →
Rainer Vieira
@Rainervieira · X

@marsilcos @joaoantoniocjr @fabio_btx @mateusroth @marcelo_dsl @JulioCezarMD @lucianopotter https://t.co/045bh5zC5c "Hand hygiene and facemasks seemed to prevent household transmission of influenza virus when implemented within 36 hours ... These findings suggest that nonpharmaceutical interventions are important for mitigation of pandemic and interpandemic influenza.

Mar 21, 2021 · 3 followers View post →
Jennifer Westlake
@JenniferNOTL · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Mar 20, 2021 · 9 shares · 2,956 followers View post →
M
@kramden88 · X

@MVmrxlh @ianmSC Findings of a Randomized Trial of NPI's to Prevent Flu Trans. in Households (2009) "Although we found little effect of [masks/handwashing] our study was underpowered. Nevertheless, our point estimates are close to null, strongly suggesting true equipoise." https://t.co/NusWSF8z4t

Mar 11, 2021 · 946 followers View post →
Your Friendly Neighborhood Dungeon Master
@AnActualWizard_ · X

@DrDavidMBerman @POTUS Next up: https://t.co/2eE696XcqX

Mar 11, 2021 · 172 followers View post →
Vincent Jappi
@VincentJappi · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Feb 11, 2021 · 9 shares · 1,755 followers View post →
Marianne
@morgannemorgann · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Feb 11, 2021 · 9 shares · 749 followers View post →
Elementary Library
@librarynews111 · X

@maskson247 @gov_fails @Bier_Automata @nytimes Here is a RCT from several years back that says that *shockingly* masks and washing your hands help. Gee. I wonder if that is why DOCTORS have done those things for so many decades while working with sick patients.

Feb 11, 2021 · 13 followers View post →
Tony McChrystal
@tonymac5 · X

@ColleenHuberNMD @MaureenStroud @Lone_Star_Keto https://t.co/48bC7he2id https://t.co/j05gaWBBvN https://t.co/hOMAbbPG7M

Feb 9, 2021 · 1 like · 836 followers View post →
John Porten
@jporten · X

@channel_echo @JamesSurowiecki Sure, here's a few: https://t.co/TK7iOGfrqd https://t.co/r47eXb3SnV https://t.co/9JfCAI1KTX

Feb 8, 2021 · 586 followers View post →
SurviveLockdown
@SurviveLockdown · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Feb 5, 2021 · 9 shares · 144 followers View post →
Chris
@PlausiblDenial · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Feb 5, 2021 · 9 shares · 2,912 followers View post →
Donna Lavin
@DonnaLavin7 · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Feb 1, 2021 · 9 shares · 217 followers View post →
Denise
@DeniselxN · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Feb 1, 2021 · 9 shares · 2,323 followers View post →
FFAC
@stevelanebitch · X

6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/wK5c064hUN

Jan 31, 2021 · 10 likes · 9 shares · 5,334 followers View post →
The Real Truther
@thereal_truther · X

@LajXtra @AtomsksSanakan @Loretta_Torrago @Idontma48200911 @VPrasadMDMPH @VPwnd_fan @ianmSC "Hand hygiene and facemasks seemed to prevent household transmission of influenza virus..These findings suggest that nonpharmaceutical interventions are important for mitigation of pandemic.." https://t.co/NO63r8D6kQ

Jan 24, 2021 · 51,178 followers View post →
MARK WILLIAM WALKER
@j0vFeet1 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 30, 2020 · 25 shares · 2,920 followers View post →
Thomas Bullard
@hpyrancher · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 30, 2020 · 25 shares · 5,589 followers View post →
Lib Greg Quark of TikTok
@GregQuark · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 36 followers View post →
Silence and Frost
@secjr112 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 4,857 followers View post →
TN Perspective
@SpeakinFromTN · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 3,421 followers View post →
Jim Farrell
@_seamusfarrell · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 456 followers View post →
Craig S. Bell
@craig_s_bell · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 732 followers View post →
E.O.A.
@eastofadelaide · X

@scotty_webb @ClintGunter2 @Healthmac https://t.co/wBwvKZ9bMn

Dec 29, 2020 · 1,629 followers View post →
Rory M. arcus
@Rory_Marcus_ · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 125 followers View post →
the Ultra MAGA disabled housewife
@DachsiesWMoxie · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 1,451 followers View post →
GAgirl1967❤️
@SavvyTamz_57 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 14,730 followers View post →
Pandemic Amnesty International MAGA
@imadmf · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 3,992 followers View post →
Joe
@JoeC1776 · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 9,880 followers View post →
True American
@TrueAmericanOH · X

RT @caroljsroth: First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “exper…

Dec 29, 2020 · 25 shares · 394 followers View post →
Carol Roth
@caroljsroth · X

First, studies back to 2007 recommended mask wearing as protocol for similar respiratory viruses. This was known by “experts”. https://t.co/ANy5bWyhhI; https://t.co/XqlwDQtRrW; https://t.co/Gu8dyfdtTl

Dec 29, 2020 · 114 likes · 25 shares · 210,169 followers View post →
Matthew
@Matthew94091812 · X

Study: Cowling 2009 Who wore masks: All persons (index + contacts) Fm + HH, ILI: OR=1.25 (0.79-1.98) n=149 Fm + HH, Lab: OR=0.77 (0.38-1.55) n=149 HH Only, ILI: OR=0.92 (0.56-1.48) n=130 HH Only, Lab: OR=0.57 (0.26-1.22) n=130 Control: n=183 https://t.co/EFOwDd09nc

Dec 21, 2020 · 1 like · 1,296 followers View post →
Mr 'President Elect' Vi Britannia
@LiquorElixir · X

@Johnny_2_the_G @Holbornlolz Opinion isn't necessarily correct, but sure just disregard actual citations of scientific studies and don't provide any of your own. Here is a very limited study conducted prior to COVID-19 indicating facemasks (+hand washing) help limit influenza spread. https://t.co/cshKxwud2z

Dec 17, 2020 · 713 followers View post →
Marsp363
@Fearless_M4T · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Dec 16, 2020 · 3 shares · 45 followers View post →
Jonathan Cedernaes
@JCedernaes · X

@dajsel @akutdoktorn Här en cluster randomized, controlled trial mot PCR-verifierad influensa A/B: https://t.co/y9tiZYhKj5 "transmission of RT-PCR-confirmed infection seemed reduced ... attributable to fewer infections among participants using facemasks plus hand hygiene ... odds ratio, 0.33 "

Dec 6, 2020 · 3,125 followers View post →
Nypon
@nypon5 · X

@anderslindberg Det är helt enkelt inte sant. Hur mycket sars-cov-2 som faktiskt överförs via händer och hur mycket handtvätt hjälper är osäkert som allt annat. https://t.co/i3Gi9kvbLo https://t.co/xsEdgZNQnn https://t.co/GXJPhHI2hQ https://t.co/jSlUiwArcx

Nov 23, 2020 · 13 likes · 165 followers View post →
Fairin Renish
@RenishFairin · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Nov 17, 2020 · 3 shares · 54 followers View post →
Stjepan
@sosojni · X

@cardlaw35 @ianmSC https://t.co/5Nm6hQ33m3 https://t.co/OxZZk4qJyO https://t.co/sC9VNZtPAc https://t.co/MTJsiJalqG Find more links on: https://t.co/u1JRFUaJl4

Nov 16, 2020 · 312 followers View post →
Elaine May
@Emu52May · X

RT @stevelanebitch: 6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza tr…

Nov 13, 2020 · 3 shares · 2,407 followers View post →
FFAC
@stevelanebitch · X

6/x Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/wK5c064hUN

Nov 13, 2020 · 12 likes · 3 shares · 5,334 followers View post →
מאיר רובין Meir Rubin
@Meir_Rubin · X

@asafpeer יש רבים, רק לא על הקורונה מסיבות אתיות ואחרות. הנה אחד על צמצום הדבקה ביתית בשפעת באמצעות מסיכות והיגיינה. https://t.co/p6bYSGKYTA

Nov 12, 2020 · 13,660 followers View post →
GW
@gdawgrancid · X

@GnirtSs @Carrenimfa @henrik_ullum @HaraldofW You're right, its foolish that doctors have worn masks for over 100 years now. I'm sure any day now, we're going to hear about how they're so sick from wearing a mask all day. https://t.co/1TYeqLvuNy https://t.co/GgfYD50n6V Research is out there, proper masks+good hygiene = good

Oct 27, 2020 · 21 followers View post →
Jeffrey Katz
@eris23 · X

@gummibear737 @GovLauraKelly Studies like https://t.co/MrMpGLnIKp

Oct 25, 2020 · 134 followers View post →
Hannes Lagerroth
@Quaxi_ · X

@DrEmmaFrans Det finns många bra studier som förlitar sig på mer än bara korrelation, här är ett axplock RCT-studier: https://t.co/FNFjo8lxPz https://t.co/Bx7YWYZ84D https://t.co/d9iZnzIQkK https://t.co/3YTo3ZrMgP

Oct 25, 2020 · 2 likes · 302 followers View post →
Alev Tunalı
@TunalAlev · X

@PardusDr https://t.co/bvKhPMkMQM

Oct 20, 2020 · 1 like · 622 followers View post →
Steve Martin
@semartin · X

@NyxEleftheria @manufacturedba @newyorkjoe75 @synthyis @JennaEllisEsq https://t.co/lXrh9YKQU3

Oct 18, 2020 · 558 followers View post →
Mano Govender
@ManoGov · X

#WearAMask is you must, but they don't work Facemasks and hand hygiene to prevent influenza transmission in households: a cluster randomized trial https://t.co/uxv5rwX0g4

Oct 8, 2020 · 600 followers View post →
Mano Govender
@ManoGov · X

@DrZweliMkhize Facemasks and hand hygiene to prevent influenza transmission in households: a cluster randomized trial https://t.co/uxv5rwX0g4

Oct 6, 2020 · 600 followers View post →
Ben Tolchin, MD, MS, HEC-C, FAAN, FAES
@btolchin · X

@briandavidearp E.g. https://t.co/4DyKAVgmcg https://t.co/JvPTnrvaBK https://t.co/j0WRLIBWrF https://t.co/iTPMK81C3g https://t.co/e3clTcUfCj https://t.co/RlA6ud0PAt https://t.co/rzlxXno2uW 3/

Oct 3, 2020 · 1 like · 1,476 followers View post →
Céline
@Celine_at_Paris · X

@VaeVix @mimiryudo @LehmannDrC @SibethNdiaye https://t.co/XACv2Mo9cp "Hand hygiene and facemasks seemed to prevent household transmission of influenza virus "

Sep 23, 2020 · 1,357 followers View post →
JakZ
@JakZ79 · X

@moy_qmac @AnimalMX @Pajaropolitico Mira te paso un estudio de la efectividad de las mascarillas con familiares de pacientes enfermos de influenza, y como se contagiaron los miembros de la familia, y que no casi diferencia entre los que no usaron proterccion. https://t.co/LvOWU0R7xB

Sep 22, 2020 · 69 followers View post →
lahunsotz
@lahunsotz · X

https://t.co/UOs5fJ8kYR

Sep 17, 2020 · 18 followers View post →
E.O.A.
@eastofadelaide · X

@jane_dough2020 @globalnews https://t.co/wBwvKZ9bMn

Sep 15, 2020 · 1,629 followers View post →
Alan Turing
@AlanTuring1891 · X

@mbc48 @Tfreema94181255 @stephenslayter @DrTomFrieden @realDonaldTrump Cowling 2009 (RCT, N=1201, Household Setting) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/gKIuxFyw7z

Aug 29, 2020 · 277 followers View post →
Tom Andrews
@0bj3ctivity · X

@moneyallgood @Linda36758099 @robottopub https://t.co/EHglWNH4lY

Aug 22, 2020 · 5,472 followers View post →
Patrick S.
@pasanto_de · X

@BlochRaffael @Rapatauxx @DaFeid @125OHD @MikkCH @FrankfurtZack @theotherphilipp Cowling et al., 2009 “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/mkLlM5qZV9

Aug 17, 2020 · 261 followers View post →
Patrick S.
@pasanto_de · X

@3Komma141592 @tweaxDE Cowling et al., 2009 (RCT, N=1201) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/mkLlM5qZV9

Aug 17, 2020 · 261 followers View post →
Patrick S.
@pasanto_de · X

@TheSkender @Ce_mal29515268 @MailiIhl Cowling et al., 2009 (RCT, N=1201) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/mkLlM5qZV9

Aug 17, 2020 · 261 followers View post →
Patrick S.
@pasanto_de · X

@Ufer78756356 @M_U_Pohl @GerdK10 @ZuckerZucker3 @ReneRoessig @SHomburg Cowling et al., 2009 (RCT, N=1201) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/mkLlM5qZV9

Aug 14, 2020 · 261 followers View post →
Hannes Lagerroth
@Quaxi_ · X

@adamaltmejd @ErikAngner Finns en del intressanta RCTs. Vissa buntar ihop handtvätt dock, och de som inte gör de har svårt med power eller låg använding. Överlag rekommenderar masker. https://t.co/FNFjo8lxPz https://t.co/Bx7YWYZ84D https://t.co/d9iZnzIQkK https://t.co/t0KKvuY7Sy https://t.co/AcnfPMdINc

Aug 13, 2020 · 1 like · 302 followers View post →
Patrick S.
@pasanto_de · X

@360_bot @FlorianTopf @cellarmusica @arancheles @Santos Cowling et al., 2009 (RCT, N=1201) “Hand hygiene with or without facemasks seemed to reduce influenza transmission, but the differences compared with the control group were not significant.” https://t.co/mkLlM5qZV9

Aug 8, 2020 · 261 followers View post →
Nypon
@nypon5 · X

@OstlundOllie @RobinFondberg @thhmas Det finns några sådana studier där man studerar source control alt. situation där alla (inkl sjuka) har mask. MacIntyre et al. (2016) https://t.co/KnZu4b49r8 Aiello et al. (2016) https://t.co/OkshZD6uih Cowling et al. (2009) https://t.co/aHzx4MXk5x

Aug 4, 2020 · 165 followers View post →
lahunsotz
@lahunsotz · X

@al_lirasama @SinEmbargoMX https://t.co/UOs5fJ8kYR

Aug 3, 2020 · 18 followers View post →
ok
@lucisimpulsive · X

@frequency4201 @DOUBLEDBIELBY04 @BigSmokeHD @KidCudi @_Littleman97_ https://t.co/vM02llO0gP ; https://t.co/dqWcXLsCcM ; https://t.co/qQaQCsfC41 ; https://t.co/COfd5q9m6I ; https://t.co/ylu0rhjNLM ; https://t.co/dqWcXLsCcM ; https://t.co/6FhhavkkNU; https://t.co/9PB3Uvq5gU

Jul 24, 2020 · 14 followers View post →
Arpit Gupta
@arpitrage · X

@andrewlilley_au @MaMoMVPY The challenge is the poor quality of the evidence. That’s why I tend to look more at those RCTs and well powered studies in the area, ie this one https://t.co/ExOANyJc6X

Jul 15, 2020 · 2 likes · 41,584 followers View post →
Raemka
@RAEMKA1 · X

A study from 2009 in Hong Kong similar to the 2012 study which took place in Germany. https://t.co/yU5CpS5GFq

Jul 5, 2020 · 575 followers View post →
Nypon
@nypon5 · X

@MagWes @adamaltmejd @HannesMalmberg1 @jonasvlachos @motbilder @PaulTLevin @JacobGudiol @viskot @galinash @RG_GTH @AdelAHamdeh @GunnarBj @swede1001 De studier på andra virus som jag hittar rapporterar iaf ingen jättestor skillnad i evidens till fördel för ökad handhygien. 1) https://t.co/1QDS8FN1R1 2) https://t.co/a8S4nsmNfo 3) https://t.co/aHzx4NeUX5 4) https://t.co/fDjbMKak0D

Jun 26, 2020 · 1 like · 165 followers View post →
Arpit Gupta
@arpitrage · X

@Epi_D_Nique @Rose_Marie_Holt @wagonomics @gregggonsalves @EnigmaMachine9 Here are a few studies that I have handy: https://t.co/ExOANyJc6X https://t.co/0hHwcqo0cE https://t.co/RX00iEzVYD

Jun 25, 2020 · 41,584 followers View post →
Ryan Basham
@brashamr · X

@EricInfoTech That’s the 6th citation. The seventh study the article you posted sited kookier at the effectiveness of reducing transmission of the flu in real work conditions with the use of surgical masks and hand sanitizer. https://t.co/PBjXCie697

Jun 25, 2020 View post →
Ryan Basham
@brashamr · X

@EricInfoTech https://t.co/PBjXCie697

Jun 25, 2020 View post →
Chris Connors
@bigunderscorec · X

@mikemahony @Jaxluck2020 @JordanSchachtel https://t.co/DWuGCgBcyF https://t.co/brfBtZaMhf https://t.co/1KTGK6kip4 https://t.co/qPNxmMbGVs and this one is for my, 'it's just the flu' people, https://t.co/hqKayFFHnN

Jun 21, 2020 · 1 like · 297 followers View post →
Payne
@tigerbotpayne · X

@PBoogerwood @glimmertwintx @junior_miller @gordonkeith @GeorgeDunham @dfwticket Interesting. By the way, do you think you can find more cases of "published data" stating they're ineffective than I can find stating the opposite? I'll start with some oldies but goodies: 2009 - https://t.co/us6mdOXdY1 2003 - https://t.co/7GeCFbXgpg

Jun 19, 2020 · 35 followers View post →
Alexandra
@A_sick_world · X

@persson_disa @PelleiBacken 4) https://t.co/mr4Ig7chJd https://t.co/eLXdzVqvfC https://t.co/qKDwyETTeQ https://t.co/mxZfvVqWMF https://t.co/Lpx0BCumS8 https://t.co/n7VoduThNW https://t.co/HbDajHujtY https://t.co/lW5Z2EjlID

Jun 14, 2020 · 1,896 followers View post →
Jennifer J Walters
@JWaltersFemale · X

RT @JWaltersFemale: @alan_poirier Here's one, https://t.co/p3hvlCwA3N

May 21, 2020 · 1 share · 1,229 followers View post →
Jennifer J Walters
@JWaltersFemale · X

@alan_poirier Here's one, https://t.co/p3hvlCwA3N

May 21, 2020 · 1 share · 1,229 followers View post →
Jason (parody)
@jasongfleischer · X

@AshDHarrington @MeanestBossEver Cumulative is not the same as additive but its the effect not the specifics that Ben is talking about. Refs: https://t.co/VG9t2rj1nF https://t.co/p3qrNsdeTz

May 19, 2020 · 1 like · 600 followers View post →
DaveyBoy
@DaveyBo98096658 · X

@AlexBerenson Or this? "...transmission of RT-PCR–confirmed infection seemed reduced, an effect attributable to fewer infections among participants using facemasks plus hand hygiene." https://t.co/y7BRBrtfQx

May 15, 2020 · 5 followers View post →
DaveyBoy
@DaveyBo98096658 · X

@cmari48781789 @AmyLouAlvarado2 @TheFree_Lance @AlexBerenson "...transmission of RT-PCR–confirmed infection seemed reduced, an effect attributable to fewer infections among participants using facemasks plus hand hygiene." https://t.co/y7BRBrKRf7

May 14, 2020 · 5 followers View post →
dise
@impercezione · X

@superceps https://t.co/Bu5osq8ILm https://t.co/cGgubfdmph https://t.co/o8gpd4NpHD https://t.co/MKt0t2BrHM https://t.co/2eVEP59oLt https://t.co/9uiPBerubN attenzione in particolare a questo punto di Lancet: https://t.co/51cbNTeZJb

May 8, 2020 · 2 likes · 2,753 followers View post →
kokko
@kokko1st · X

「全員が #マスク 着用することによって、インフルエンザの #家庭内感染 低下の傾向が見られた」とする研究結果。 https://t.co/sQbqU0exoz https://t.co/mW1qXz4w11 https://t.co/APTQlhyloS

Apr 19, 2020 · 67 followers View post →