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Prevalence of endemic respiratory viruses during the COVID-19 pandemic in urban and rural Malawi

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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  • Elen Vink
  • Louis Banda
  • Abena S Amoah
  • Stephen Kasenda
  • Jonathan M Read
  • Chris Jewell
  • Brigitte Denis
  • Annie Chauma Mwale
  • Amelia Crampin
  • Catherine Anscombe
  • Mavis Menyere
  • Antonia Ho
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<mark>Journal publication date</mark>29/02/2024
<mark>Journal</mark>Open Forum Infectious Diseases
Issue number2
Volume11
Pages (from-to)ofad643
Publication StatusPublished
Early online date21/12/23
<mark>Original language</mark>English

Abstract

BackgroundWe investigated endemic respiratory virus circulation patterns in Malawi, where no lockdown was imposed, during the COVID-19 pandemic.MethodsWithin a prospective household cohort in urban and rural Malawi, adult participants provided upper respiratory tract (URT) samples at 4 time points between February 2021 and April 2022. Polymerase chain reaction (PCR) was performed for SARS-CoV-2, influenza, and other endemic respiratory viruses.Results1626 URT samples from 945 participants in 542 households were included. Overall, 7.6% (n = 123) samples were PCR- positive for >1 respiratory virus; SARS-CoV-2 (4.4%) and rhinovirus (2.0%) were most common. No influenza A virus was detected. Influenza B and respiratory syncytial virus (RSV) were rare. Higher virus positivity were detected in the rural setting and at earlier time points. Coinfections were infrequent.ConclusionsEndemic respiratory viruses circulated in the community in Malawi during the pandemic, though influenza and RSV were rarely detected. Distinct differences in virus positivity and demographics were observed between urban and rural cohorts.