Article
Antigenic Drift of the Pandemic 2009 A(H1N1) Influenza Virus in a Ferret Model
9 May 2013
Abstract excerpt
Surveillance data indicate that most circulating A(H1N1)pdm09 influenza viruses have remained antigenically similar since they emerged in humans in 2009. However, antigenic drift is likely to occur in the future in response to increasing population immunity induced by infection or vaccination. In this study, sequential passaging of A(H1N1)pdm09 virus by contact transmission through two independent series of...
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