Oseltamivir is protective for in-patient mortality in PCR confirmed influenza B and influenza A(H3N2) infections in an historic cohort of 1,048 patients hospitalised during the 2016-17 and 2017-18 influenza seasons

Mark Reacher*, Ben Warne, Neville Q. Verlander, Ashley Popay, Lucy Reeve, Nicholas K. Jones, Kyriaki Ranellou, Nyaradzai Sithole, Rory Carpenter, Angharad Everden, Elizabeth Jarman, Ali Khalid, Kyle Lam, Chloe Myers, Shuhui Ren, Kathryn J. Rolfe, Tommy Sutton, Silvana Christou, Callum Wright, Saher ChoudhryMaria Zambon, Clare Sander, Hongyi Zhang, Hamid Jalal

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

1 Citation (Scopus)

Abstract

Standard course oseltamivir 75mg two times daily for five days was associated with an 82% reduction of odds of in-patient death (OR 0.18 (0.07,0.51)) compared to no oseltamivir treatment (OR 1.0 Reference) in a final multivariable logistic regression model of a retrospective cohort of PCR confirmed influenza B and influenza A (H3N2) infected patients admitted to a large UK teaching hospital in influenza seasons 2016-17 and 2017-18. No difference of protective odds for standard course oseltamivir was observed between influenza B and influenza A (H3N2) nor between influenza seasons. These observations strongly support clinical guidelines for molecular testing for respiratory viruses on admission to hospital and prompt treatment of confirmed seasonal influenza B and A with oseltamivir 75mg twice daily for five days.

Original languageEnglish
Pages (from-to)256-308
Number of pages53
JournalJournal of Infection
Volume86
Issue number3
DOIs
Publication statusPublished - Mar 2023

Bibliographical note

Publisher Copyright:
© 2023 The British Infection Association

Keywords

  • Historic Cohort study
  • Influenza A (H3N2) in-patient mortality
  • Influenza B
  • Logistic regression
  • Multiplex PCR
  • Multivariable logistic regression
  • PCR

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