Influenza A virus subtype H1N2v explained

Influenza A virus subtype H1N2v is a variant of the flu virus, H1N2.[1] [2] Most reported cases have resulted in mild upper respiratory tract symptoms.[3]

Signs and symptoms

Clinical features are typically of mild upper respiratory tract symptoms.[3]

Epidemiology

Between 2005 and November 2023, there have been around 50 reported cases of H1N2v in humans worldwide.[4] It has generally affected children.[1] Most have been reported in the United States.[5] Others have included Brazil and Vietnam.[6] In November 2023, the UK reported its first case in a human.[7]

Notes and References

  1. Book: Havers . Fiona P. . Campbell . Angela J. P. . Kliegman . Robert M. . St Geme III . Joseph W. St Geme . Nelson Textbook of Pediatrics. 2020 . Elsevier . Philadelphia . 978-0-323-56890-6 . 1728 . 21st . https://books.google.com/books?id=LJuRDwAAQBAJ&pg=PA1728 . en . 285. Influenza viruses.
  2. Web site: Variant Influenza Viruses in Humans CDC . www.cdc.gov . CDC . 28 November 2023 . en-us . 9 August 2022.
  3. Book: Levitt . Alexandra . Messonnier . Nancy . Jernigan . Daniel . Uyeki . Timothy M. . Braden . Christopher R. . Rosenberg . Ronald . Khabbaz . Rima . . Bennett . John E. . Dolin . Raphael . Blaser . Martin J. . Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases . 2019 . Elsevier. 978-0-323-55027-7 . 164–180 . https://books.google.com/books?id=8pKqDwAAQBAJ&pg=PA173. 1 . en . 14. Emerging and reemerging infectious disease threats.
  4. Web site: UKHSA detects human case of influenza A(H1N2)v . GOV.UK . 27 November 2023 . en.
  5. Web site: Influenza A(H1N2)v-United States of America . www.who.int . WHO . 28 November 2023 . en . 11 August 2023.
  6. Book: Kiseleva . Irina . Larionova . Natalie . Influenza: A Century of Research . 2021 . Bentham Science Publishers . Sharjah, UAE . 978-1-68108-845-7 . 79 . https://books.google.com/books?id=qTI9EAAAQBAJ&pg=PA79 . en . 3. Influenza virus ecology and evolution.
  7. Web site: UKHSA detects human case of influenza A(H1N2)v . GOV.UK . 28 November 2023 . en.

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