October 2020 PMID 33064982

Why and How Vaccines Work.

Akiko Iwasaki, Saad B Omer

Mentions

82
Peak: 26 in Mar 2021
across 4 sources since Oct 2020

Extended reach

515,457
potential audience

Total likes

342

Video views

23

Mentions per month

Oct 2020 – Sep 2025

Where it's discussed

  • X / Twitter76 posts
  • Bluesky2 posts
  • YouTube2 videos
  • News2 articles

AI synopsis

What people are saying

The overall sentiment reflects curiosity and a recognition of the importance of understanding vaccine mechanisms, exemplified by posts asking for explanations from medical professionals and referencing scientific articles. However, there are also critical remarks and dismissive language that reveal ongoing skepticism and social divisions regarding vaccine acceptance, illustrating both the influence and the challenges of disseminating scientific information in public discussions.

AgreementNeither agree nor disagree

The discussions show mixed feelings, with some posts supporting the science behind vaccines, while others express distrust or skepticism, indicating neutral or divided agreement.

InterestModerate interest

Many posts show curiosity and a desire to understand how vaccines work, especially through references to explanations by experts and scientific studies.

EngagementModerate engagement

Some users actively question, challenge, or elaborate on the science, indicating a moderate level of engagement; others dismiss or criticize the discussions, which slightly lowers engagement.

ImpactModerate impact

The discussions highlight the importance of vaccine science in forming public trust and combating misinformation, giving them a moderate impact especially in shaping opinions or emphasizing the science behind vaccination.

Abstract in brief

  • Vaccines play a crucial role in saving lives by protecting against deadly diseases caused by viruses and bacteria.
  • The development of COVID-19 vaccines has been a significant achievement, but there are still ongoing challenges to ensure safety and effectiveness.
  • Understanding how vaccines work helps us appreciate the science behind their ability to prevent infections and save millions of lives.]

Top posts

Most liked on X and Bluesky
Prof. Akiko Iwasaki
@VirusesImmunity · X

Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses (caused by vaccine-associated PAMPs). Transient inflammation might somehow divert the leukocytes causing #longCOVID (6/) https://t.co/20RYJmuDRR https://t.co/wDdCiQBQ1z

Feb 28, 2021 · 309 likes · 60 shares · 212,795 followers View post →
Sandra Rajme
@SandraRajme · X

Oct 15, 2020 · 10 likes · 5,978 followers View post →
Roslyn Bill
@RoslynBill · X

'Vaccines save millions of lives from infectious diseases caused by viruses and bacteria'. https://t.co/wUqAOW5Q5K

Oct 19, 2020 · 6 likes · 2 shares · 975 followers View post →
Antonio Guerrero
@guerreroespejo · X

Se estudian todos los tipos de #vacunas en #COVID. Las vacunas modernas incluyen las basadas en ácidos nucleicos (ARNm, ADN), con vectores virales, partículas similares a virus y de proteínas recombinantes (subunidades) @CellCellPress ✍️@VirusesImmunity

Oct 15, 2020 · 4 likes · 21,639 followers View post →
Rachel Burckhardt, Ph.D.
@RMBurckhardt · X

Excellent overview from Dr. @VirusesImmunity about the history, science, and future of #vaccines Help increase vaccine acceptance by getting vaccinated as an example, using #scicomm to combat misinformation, and educating the public on how #VaccinesWork https://t.co/lBHDGOacoF

Oct 27, 2020 · 3 likes · 2 shares · 467 followers View post →
Vax-Hub
@vaxhub · X

#Vaccines have greatly reduced the burden of infectious diseases. However, misinformation and the consequent mistrust of vaccinations pose a threat to their success and positive impact on global human health.

Oct 20, 2020 · 3 likes · 1 share · 427 followers View post →

All mentions

Jeri
@earthfan.bsky.social · Bluesky

Lots of children and older folk in Florida get to die so Republicans can learn what science has known for almost 100 years: Why and how vaccines work to prevent disease that’s followed by death and disability.

Sep 8, 2025 View post →
Lisa B.
@PrettyPenny2007 · X

@RobertKennedyJr It is terrible that you do not understand why and how vaccines work or It seems like you are trying to make money for the pharmaceutical companies by making people pay full price for the vaccine if they want them. Are you completely uneducated or just corrupt?

Sep 5, 2025 · 1 like · 295 followers View post →
Cindividuality
@C0nstant_R3ad3r · X

@LauraRbnsn I really miss the days when we listened to actual medical experts who used research-based FACTS to explain why and how vaccines work. We need to stop giving stupid people a voice.

Apr 25, 2025 · 1 like · 1,460 followers View post →
¡ƙąɬıɛ!
@katmarmal · X

@N0taTwitB0t @JennMGreenberg @DrSuzanneH7 can you explain the ingredients in vaccines and how they work? people study medicine for like 12 years… obviously they learn why and how vaccines work. it’s not like their professors goes vaccines work just bc they do! no further questions!

Apr 22, 2025 · 1 like · 12 followers View post →
John
@klimax149art · X

@dudebronicus @Greek_Nikolas @krassenstein You must be slow. I used that to correct my typo not everything is about you. Also nice comeback NPC so edgy and cool. Doesn’t matter you proved my point correct in your original post yet you still are to dumb to realize you described why and how vaccines work.

Feb 27, 2025 · 30 followers View post →
Quantum Quasar
@quantum_quasar · X

@j4yn3b0d @narindertweets @RealDeniseWelch When you understand why and how vaccines work come back to me.

Feb 18, 2025 · 359 followers View post →
z0phn.bsky.social
@z0phn.bsky.social · Bluesky

Which proves he has no fucking clue why and how vaccines work. Herd immunity requires mandates to be reached. If 20-30% of the misled and poorly educated parents simply stop vaccinating their kids, we all suffer.

Dec 16, 2024 View post →
Martha Finkle
@martha_finkle · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Jan 14, 2024 · 60 shares · 484 followers View post →
Dr Judy VaccinePLUS - Novavax JN1 Feb 25
@JudyandHuahua · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Jan 14, 2024 · 60 shares · 2,584 followers View post →
Neon Nexion
@Neon_nexion · X

@iamjohnsnow1 @ClownWorld_ https://t.co/PemtkArBfa

Jan 26, 2023 · 69 followers View post →
sou16
@sou16 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

May 3, 2021 · 60 shares · 205 followers View post →
That_DarnKat
@That_DarnKat · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Apr 1, 2021 · 60 shares · 2,313 followers View post →
Zarja Muršič
@piskotk · X

@Matej_Klaric Ja to je zelo zanimivo. Tudi v tem članku opisano. https://t.co/bYRVAWEfLi

Mar 22, 2021 · 2,545 followers View post →
Andrea
@Walrathis · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 12, 2021 · 60 shares · 14,282 followers View post →
Patt Kopp #I’m with her- Kamala
@mvgal92691 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 7, 2021 · 60 shares · 2,388 followers View post →
bfitzinAR
@bfitzinAR · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 7, 2021 · 60 shares · 3,232 followers View post →
特別期間
@periodoespecial · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 7, 2021 · 60 shares · 192 followers View post →
Herodote1789
@herodote1789 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 5, 2021 · 60 shares · 1,724 followers View post →
Matt Dragon @matt_dragon@ioc.exchange
@matt_dragon · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 5, 2021 · 60 shares · 988 followers View post →
BarbC
@BarbC_sweden · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 4, 2021 · 60 shares · 107 followers View post →
AntiMachineGunDeathInMassMurderistan = 2025ProLife
@deepvard · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 4, 2021 · 60 shares · 1,769 followers View post →
Viv Milano
@VivMilano · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 4, 2021 · 60 shares · 23,421 followers View post →
@thevelvetmeow.bsky.social
@thevelvetmeow · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 4, 2021 · 60 shares · 784 followers View post →
Claudio
@CloudyKant · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 3, 2021 · 60 shares · 893 followers View post →
Algernon
@Algerno42910520 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 3, 2021 · 60 shares · 855 followers View post →
David Baker
@DavidBa69494891 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 3, 2021 · 60 shares · 353 followers View post →
little miss little butterfly
@19_recovery · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 3, 2021 · 60 shares · 375 followers View post →
永添泰子(性暴力から子ども達を守る社会に変えよう)
@packraty · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 3, 2021 · 60 shares · 10,337 followers View post →
Quitting Xitter
@BashfordThomas · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 3, 2021 · 60 shares · 34 followers View post →
yumi @gj
@ygjumi · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 2, 2021 · 60 shares · 12,780 followers View post →
Defender of
@e2dot7182818284 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 2, 2021 · 60 shares · 4,331 followers View post →
Honu
@honu17755302 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 2, 2021 · 60 shares · 2,796 followers View post →
Carbonara - #ME/CFS #ChronicallyIgnored
@BettinafightsME · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 1, 2021 · 60 shares · 1,614 followers View post →
FrankenTan
@FrankenTan · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 1, 2021 · 60 shares · 1,530 followers View post →
IWJ_KB_SPTR
@IWJ_KB_SPTR · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 1, 2021 · 60 shares · 349 followers View post →
ニュークリ
@Newcli0 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 1, 2021 · 60 shares · 70 followers View post →
きゅー
@beechhangergals · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 1, 2021 · 60 shares · 1,957 followers View post →
Salli Pilcher RN, BSc, DN, QN
@SalliPilcherNHS · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Mar 1, 2021 · 60 shares · 1,581 followers View post →
Claire Cozler
@ClaireCozler · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 2,716 followers View post →
Joe Match
@match_joe · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 2,704 followers View post →
Alva
@Alva1588 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 447 followers View post →
Liz Szabo
@LizSzabo · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 64,858 followers View post →
Praveen Singh
@praveenvq · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 2,350 followers View post →
ABD ELHALIM HADDED
@AbdHadded · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 90 followers View post →
JASMINE☆Jazz
@JAZZJASMINEJAZZ · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 298 followers View post →
Priceless2020 #FBLC
@Priceless20201 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 1,204 followers View post →
内田
@uchida_kawasaki · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 1,927 followers View post →
Fabrizio Chiodo
@FabrizioChiodo · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 11,654 followers View post →
(((Dorit Reiss)))
@doritmi · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 14,659 followers View post →
(((Liz Ditz))). Mask up, y'all. Viruses are real.
@lizditz · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 10,490 followers View post →
HOU SANJYO
@PsuRgsSuDC8RNT9 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 67 followers View post →
Janet Masleid
@LuVD3 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 159 followers View post →
Mike Shimwell
@MikeShimwell · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 70 followers View post →
EH
@ForensicMHSA · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 2,387 followers View post →
Dr Murphy WeightLoss
@TakeWeightOffMD · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 6,926 followers View post →
Tanja
@joy_pops · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 3,829 followers View post →
Diane Dewhirst
@NJdoc · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 20,572 followers View post →
Richard A. Loftus MD
@RichardALoftus1 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 1,352 followers View post →
TAKEUCHI.F.Satomi 竹内 智美
@OriorinOriorin1 · X

RT @VirusesImmunity: Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses…

Feb 28, 2021 · 60 shares · 974 followers View post →
Prof. Akiko Iwasaki
@VirusesImmunity · X

Another possible way in which vaccines can help #longCOVID symptoms is through stimulation of innate immune responses (caused by vaccine-associated PAMPs). Transient inflammation might somehow divert the leukocytes causing #longCOVID (6/) https://t.co/20RYJmuDRR https://t.co/wDdCiQBQ1z

Feb 28, 2021 · 309 likes · 60 shares · 212,795 followers View post →
SACI CBR and TelePT Clinic
@sacicb · X

R6sa5Drn2WC401HhoCq80QAvD_BwE World Health Organization (2020, December 17) How do vaccines work?. Retrieved from https://t.co/2DciSOxPa5 Iwasaki, A., & Omer, S. B. (2020). Why and How Vaccines Work. Cell, 183(2), 290–295. https://t.co/175LeUlWgt

Dec 17, 2020 · 85 followers View post →
Zarja Muršič
@piskotk · X

Te snovi sprožijo imunski odziv in jih imenujemo tudi imunogeni. Ravno te moramo predstaviti telesu na varnejši način od naravne okužbe. To naredimo z uporabo cepiv. https://t.co/bYRVAWEfLi 4/n

Nov 21, 2020 · 1 like · 2,545 followers View post →
Samuel Pushparaj
@sam_pushparaj · X

Back to back good news with COVID-19 vaccine data! Check out the other novel vaccines in clinical trial for COVID-19! Source: "Why and How Vaccines Work" - https://t.co/aAYf9xG9gt https://t.co/ezBH2hTBch

Nov 17, 2020 · 1 like · 131 followers View post →
Ken jean marie
@kenjeanmarie · X

RT @das_seed: Why and How Vaccines Work? https://t.co/CsuCroa07B Brief tweetorial by @VirusesImmunity on this topic

Nov 3, 2020 · 1 share · 251 followers View post →
Nik
@nik_nik19163049 · X

There was this posted today https://t.co/UZIE4B9hk3 How do vaccines work https://t.co/VHZtgrYFmW

Nov 2, 2020 · 466 followers View post →
Rachel Burckhardt, Ph.D.
@RMBurckhardt · X

Excellent overview from Dr. @VirusesImmunity about the history, science, and future of #vaccines Help increase vaccine acceptance by getting vaccinated as an example, using #scicomm to combat misinformation, and educating the public on how #VaccinesWork https://t.co/lBHDGOacoF

Oct 27, 2020 · 3 likes · 2 shares · 467 followers View post →
Salome
@SasMagalhaes · X

RT @vaxhub: #Vaccines have greatly reduced the burden of infectious diseases. However, misinformation and the consequent mistrust of vaccin…

Oct 21, 2020 · 1 share · 197 followers View post →
Vax-Hub
@vaxhub · X

#Vaccines have greatly reduced the burden of infectious diseases. However, misinformation and the consequent mistrust of vaccinations pose a threat to their success and positive impact on global human health.

Oct 20, 2020 · 3 likes · 1 share · 427 followers View post →
Lisa Hill
@Neuroscience_Dr · X

RT @RoslynBill: 'Vaccines save millions of lives from infectious diseases caused by viruses and bacteria'. https://t.co/wUqAOW5Q5K

Oct 19, 2020 · 2 shares · 2,130 followers View post →
rebecca stokes
@BecsS1970 · X

RT @RoslynBill: 'Vaccines save millions of lives from infectious diseases caused by viruses and bacteria'. https://t.co/wUqAOW5Q5K

Oct 19, 2020 · 2 shares · 1,094 followers View post →
Roslyn Bill
@RoslynBill · X

'Vaccines save millions of lives from infectious diseases caused by viruses and bacteria'. https://t.co/wUqAOW5Q5K

Oct 19, 2020 · 6 likes · 2 shares · 975 followers View post →
Siddhartha| सिद्धार्थ| సిద్ధార్థ
@das_seed · X

Why and How Vaccines Work? https://t.co/CsuCroa07B Brief tweetorial by @VirusesImmunity on this topic

Oct 17, 2020 · 1 like · 1 share · 1,109 followers View post →
小須田 貴延
@takanobukosuda · X

RT @hichachu: 岩崎明子教授のワクチンに関するコメント→ツィッターが明記されている!驚き! Commentary Why and How Vaccines Work Akiko Iwasaki1,2,3,7,* and Saad B. Omer4,5,6,8 7Tw…

Oct 16, 2020 · 2 shares · 2,575 followers View post →
内田
@uchida_kawasaki · X

RT @hichachu: 岩崎明子教授のワクチンに関するコメント→ツィッターが明記されている!驚き! Commentary Why and How Vaccines Work Akiko Iwasaki1,2,3,7,* and Saad B. Omer4,5,6,8 7Tw…

Oct 16, 2020 · 2 shares · 1,927 followers View post →
seki_yo
@seki_yo · X

RT @hichachu: 岩崎明子教授のワクチンに関するコメント→ツィッターが明記されている!驚き! Commentary Why and How Vaccines Work Akiko Iwasaki1,2,3,7,* and Saad B. Omer4,5,6,8 7Tw…

Oct 16, 2020 · 2 shares · 1,368 followers View post →
ニューロドクター乱夢
@hichachu · X

岩崎明子教授のワクチンに関するコメント→ツィッターが明記されている!驚き! Commentary Why and How Vaccines Work Akiko Iwasaki1,2,3,7,* and Saad B. Omer4,5,6,8 7Twitter: @virusesimmunity *Correspondence: akiko.iwasaki@yale.edu https://t.co/iMTNf9H8gP https://t.co/kaAJGUfgU0

Oct 16, 2020 · 1 like · 2 shares · 4,265 followers View post →
Sandra Rajme
@SandraRajme · X

Oct 15, 2020 · 10 likes · 5,978 followers View post →
Antonio Guerrero
@guerreroespejo · X

Se estudian todos los tipos de #vacunas en #COVID. Las vacunas modernas incluyen las basadas en ácidos nucleicos (ARNm, ADN), con vectores virales, partículas similares a virus y de proteínas recombinantes (subunidades) @CellCellPress ✍️@VirusesImmunity

Oct 15, 2020 · 4 likes · 21,639 followers View post →
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