The Institute of Environmental Science and Research (ESR) will be changing its name to the New Zealand Institute for Public Health and Forensic Science (PHF Science) on 1 July 2025. The new website address will be www.phfscience.nz as of this date. Visitors will automatically be redirected to the new address, but we would appreciate you checking and updating any links and bookmarks after this change.

Pandemic (H1N1) 2009 and seasonal influenza A (H1N1) co-infection, New Zealand, 2009

Abstract

Co-infection with seasonal influenza A (H1N1) and pandemic (H1N1) 2009 could result in reassortant viruses that may acquire new characteristics of transmission, virulence, and oseltamivir susceptibility. Results from oseltamivir-sensitivity testing on viral culture suggested the possibility of co-infections with oseltamivir-resistant (seasonal A [H1N1]) and -susceptible (pandemic [H1N1] 2009) viruses.

view journal