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

Peacey, Matthew; Hall, Richard J; Sonnberg, Stephanie; Ducatez, Mariette; Paine, Shevaun; Nicol, Mackenzie; Ralston, Jacqui C; Bandaranayake, Ralston D.; Hope, Virginia; Webby, Richard J; Huang, Sue

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

Date

2010

Authors

Peacey, Matthew

Hall, Richard J

Sonnberg, Stephanie

Ducatez, Mariette

Paine, Shevaun

Nicol, Mackenzie

Ralston, Jacqui C

Bandaranayake, Ralston D.

Hope, Virginia

Webby, Richard J

Publisher

US National Centre for Infectious Diseases

Abstract

Co-infection with seasonal infl uenza 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.