Cocirculation of Avian H9N2 and Contemporary “Human” H3N2 Influenza A Viruses in Pigs in Southeastern China: Potential for Genetic Reassortment?
Key result
Prospective virological surveillance in pigs documented the cocirculation of avian H9N2 and contemporary human H3N2 influenza A viruses, indicating repeated interspecies transmission events.
Population
Pigs imported from southeastern China to Hong Kong
Follow-up
March 1998 to June 2000
Authors
Discussion
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Member takes
Implication
Alerts to swine as influenza mixing vessels; leaves open pandemic risk to humans.
Study Design
Type
Observational
Structured PICO
P
Population
Pigs imported from southeastern China to Hong Kong
O
Outcome
Detection of interspecies transmission and cocirculation of avian H9N2 and human H3N2 viruses
The cocirculation of avian H9N2 and human H3N2 viruses in pigs highlights the potential for genetic reassortment and the emergence of novel pandemic influenza strains.
Cite This Study
Peiris et al. (2001) conducted an observational in Influenza A virus (H9N2 and H3N2) in pigs. Virological surveillance was evaluated on Interspecies transmission and cocirculation of avian H9N2 and human H3N2 viruses. Prospective virological surveillance in pigs documented the cocirculation of avian H9N2 and contemporary human H3N2 influenza A viruses, indicating repeated interspecies transmission events.