The epidemiology and clinical characteristics of co-infection of SARS-CoV-2 and influenza viruses in patients during COVID-19 outbreak

J Med Virol. 2020 Nov;92(11):2870-2873. doi: 10.1002/jmv.26163. Epub 2020 Jul 6.


In this study, we performed a single-centered study of 307 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infected patients. It was found that co-infection of SARS-CoV-2 and influenza virus was common during COVID-19 outbreak. And patients coinfected with SARS-CoV-2 and influenza B virus have a higher risk of developing poor outcomes so a detection of both viruses was recommended during COVID-19 outbreak.

Keywords: SARS-CoV-2 infection; co-infection; influenza A virus; influenza B virus.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • COVID-19 / epidemiology*
  • China / epidemiology
  • Coinfection / epidemiology*
  • Coinfection / virology*
  • Disease Outbreaks / statistics & numerical data*
  • Female
  • Humans
  • Influenza A virus / pathogenicity
  • Influenza B virus / pathogenicity
  • Influenza, Human / epidemiology*
  • Male
  • Middle Aged
  • Retrospective Studies