Evolutionary Dynamics of 2009 Pandemic Influenza A Virus Subtype H1N1 in South Africa During 2009–2010

摘要

Background. The 2009 pandemic influenza A virus subtype H1N1 (A[H1N1]pdm09) was first detected in June 2009 in South Africa and later resulted in extensive transmission throughout Africa. Established routine surveillance programs and collaboration between private and public sector laboratories allowed for comprehensive molecular epidemiological and antigenic investigation of the first and second waves of 2009–2010 pandemic influenza in South Africa.