Publications by authors named "Johan Ursing"

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Risk factors for further recurrences of Clostridioides difficile infection at the first and second recurrence: a retrospective cohort.
Måns Stefansson, Oscar Bladh, Piotr Nowak, Lars Rombo, Magnus Hedenstierna, Johan Ursing

BMC Infect Dis· August 2025

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Time to positivity in Staphylococcus aureus bacteremia - one of many pieces in the diagnostic puzzle.
Martin Strömdahl, Johan Ursing

Clin Infect Dis· July 2025

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Epidemiology, Characteristics, and Treatment Outcomes of Pneumonia in Hospitalized Adults: A 5-Year Retrospective Cohort Study.
Karl Hagman, Anna C Nilsson, Magnus Hedenstierna, Johan Ursing

Open Forum Infect Dis· July 2025

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Time to Staphylococcus aureus Blood Culture Positivity as a Risk Marker of Infective Endocarditis: A Retrospective Cohort Study.
Martin Strömdahl, Karl Hagman, Karolina Hedman, Anna Westman, Magnus Hedenstierna, Johan Ursing

Clin Infect Dis· April 2025

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Outcomes of Adjunctive Corticosteroid Treatment in Hypoxemic Adults Hospitalized for Mycoplasma pneumoniae Pneumonia: A Retrospective Cohort Study.
Karl Hagman, Anna C Nilsson, Magnus Hedenstierna, Johan Ursing

Clin Infect Dis· February 2025

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Prevalence and clinical relevance of viraemia in viral respiratory tract infections: a systematic review.
Karl Hagman, Tamara Postigo, David Diez-Castro, Johan Ursing, Jesús F Bermejo-Martin

Lancet Microbe· February 2025

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Effects of remdesivir on SARS-CoV-2 viral dynamics and mortality in viraemic patients hospitalized for COVID-19.
Karl Hagman, Magnus Hedenstierna, Jacob Widaeus, Emelie Arvidsson, Berit Hammas, Johan Ursing

J Antimicrob Chemother· November 2023

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Safety and tolerability of frozen, capsulized autologous faecal microbiota transplantation. A randomized double blinded phase I clinical trial.
Måns Stefansson, Oscar Bladh, Ola Flink, Otto Skolling, Hans-Peter Ekre, Johan Ursing

PLoS One· October 2023

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Seasonal variation of diarrhoeal pathogens among Guinea-Bissauan children under five years of age.
Sointu Mero, Tinja Lääveri, Johan Ursing, Lars Rombo, Poul-Erik Kofoed

PLoS Negl Trop Dis· March 2023

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Bleeding events among patients concomitantly treated with direct oral anticoagulants and macrolide or fluoroquinolone antibiotics.
Tatsuya Yagi, Buster Mannheimer, Johan Reutfors, Johan Ursing, Diego Hernan Giunta

Br J Clin Pharmacol· February 2023

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Correlation of SARS-CoV-2 Nasopharyngeal CT Values With Viremia and Mortality in Adults Hospitalized With COVID-19.
Karl Hagman, Magnus Hedenstierna, Jacob Widaeus, Emelie Arvidsson, Berit Hammas, Johan Ursing

Open Forum Infect Dis· September 2022

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Ketoconazole increases atovaquone exposure following concomitant administration with Malarone® in healthy subjects.
Mita M Thapar, Johan Ursing, Michael Ashton, Yngve Bergqvist, José Pedro Gil

J Travel Med· July 2022

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Duration of SARS-CoV-2 viremia and its correlation to mortality and inflammatory parameters in patients hospitalized for COVID-19: a cohort study.
Karl Hagman, Magnus Hedenstierna, Johan Rudling, Patrik Gille-Johnson, Berit Hammas, Johan Ursing

Diagn Microbiol Infect Dis· March 2022

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Chloroquine-susceptible and -resistant Plasmodium falciparum strains survive high chloroquine concentrations by becoming dormant but are eliminated by prolonged exposure.
Johan Ursing, Rasmus Johns, Berit Aydin-Schmidt, Carla Calçada, Poul-Erik Kofoed

J Antimicrob Chemother· March 2022

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Convalescent plasma for treatment of COVID-19: study protocol for an open randomised controlled trial in Sweden.
Joakim Dillner, Johan Ursing

BMJ Open· December 2021

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Severe Acute Respiratory Syndrome Coronavirus 2 RNA in Serum as Predictor of Severe Outcome in Coronavirus Disease 2019: A Retrospective Cohort Study.
Karl Hagman, Magnus Hedenstierna, Patrik Gille-Johnson, Berit Hammas, Malin Grabbe, Johan Ursing

Clin Infect Dis· November 2021

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Prevalence of diarrhoeal pathogens among children under five years of age with and without diarrhoea in Guinea-Bissau.
Sointu Mero, Suvi Timonen, Tinja Lääveri, Sandra Løfberg, Juha Kirveskari, Johan Ursing

PLoS Negl Trop Dis· September 2021

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Seasonal variation in the non-specific effects of BCG vaccination on neonatal mortality: three randomised controlled trials in Guinea-Bissau.
Kristoffer Jarlov Jensen, Sofie Biering-Sørensen, Johan Ursing, Poul-Erik Lund Kofoed, Peter Aaby

BMJ Glob Health· May 2021

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Stable high frequencies of sulfadoxine-pyrimethamine resistance associated mutations and absence of K13 mutations in Plasmodium falciparum 3 and 4 years after the introduction of artesunate plus sulfadoxine-pyrimethamine in Ujjain, Madhya Pradesh, India.
Ashish Pathak, Andreas Mårtensson, Sudhir Gawariker, Ashish Sharma, Vishal Diwan, Johan Ursing

Malar J· August 2020

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High-Dose Chloroquine for Uncomplicated Plasmodium falciparum Malaria Is Well Tolerated and Causes Similar QT Interval Prolongation as Standard-Dose Chloroquine in Children.
Johan Ursing, Lars Rombo, Staffan Eksborg, Lena Larson, Anita Bruvoll

Antimicrob Agents Chemother· February 2020

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Proof of concept: used malaria rapid diagnostic tests applied for parallel sequencing for surveillance of molecular markers of anti-malarial resistance in Bissau, Guinea-Bissau during 2014-2017.
Sidsel Nag, Johan Ursing, Amabelia Rodrigues, Marina Crespo, Camilla Krogsgaard

Malar J· July 2019

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Efficacy of Routine Fecal Microbiota Transplantation for Treatment of Recurrent Infection: A Retrospective Cohort Study.
Alexandra Nowak, Magnus Hedenstierna, Johan Ursing, Christer Lidman, Piotr Nowak

Int J Microbiol· July 2019

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Artemether-lumefantrine dosing for malaria treatment in young children and pregnant women: A pharmacokinetic-pharmacodynamic meta-analysis.
Frank Kloprogge, Lesley Workman, Steffen Borrmann, Mamadou Tékété, Gilbert Lefèvre, Johan Ursing

PLoS Med· June 2018

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Direct whole-genome sequencing of Plasmodium falciparum specimens from dried erythrocyte spots.
Sidsel Nag, Poul-Erik Kofoed, Johan Ursing, Camilla Koldbæk Lemvigh, Rosa Lundbye Allesøe

Malar J· February 2018

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[Rapid improvement of tick-borne encephalitis after treatment with corticosteroids].
Carl Wengse, Jesper Ericsson, Susanna Hallberg, Johan Ursing

Lakartidningen· June 2017

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