Emerging Infectious Diseases (Oct 2011)

Seroconversion to Pandemic (H1N1) 2009 Virus and Cross-Reactive Immunity to Other Swine Influenza Viruses

  • Ranawaka A.P.M. Perera,
  • Steven Riley,
  • Siu K. Ma,
  • Hua-Chen Zhu,
  • Yi Guan,
  • Joseph S.M. Peiris

DOI
https://doi.org/10.3201/eid1710.110629
Journal volume & issue
Vol. 17, no. 10
pp. 1897 – 1899

Abstract

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To assess herd immunity to swine influenza viruses, we determined antibodies in 28 paired serum samples from participants in a prospective serologic cohort study in Hong Kong who had seroconverted to pandemic (H1N1) 2009 virus. Results indicated that infection with pandemic (H1N1) 2009 broadens cross-reactive immunity to other recent subtype H1 swine viruses.

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