Pandemic influenza A(H1N1)v viruses currently circulating in New Zealand are sensitive to oseltamivir

R J Hall; M P Peacey; J C Ralston; J Bocacao; M Ziki; W Gunn; A Quirk; Q S Huang

doi:10.2807/ese.14.30.19282-en

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Pandemic influenza A(H1N1)v viruses currently circulating in New Zealand are sensitive to oseltamivir
R J Hall¹ , M P Peacey¹ , J C Ralston¹ , J Bocacao¹ , M Ziki¹ , W Gunn¹ , A Quirk¹ , Q S Huang¹
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Affiliations: ¹ World Health Organization (WHO) National Influenza Centre, Institute of Environmental Science and Research (ESR) Ltd., National Centre for Biosecurity and Infectious Disease, Upper Hutt, New Zealand

Correspondence:
R Hall
richard.hall esr.cri.nz
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Citation style for this article: Hall R J, Peacey M P, Ralston J C, Bocacao J, Ziki M, Gunn W, Quirk A, Huang Q S. Pandemic influenza A(H1N1)v viruses currently circulating in New Zealand are sensitive to oseltamivir. Euro Surveill. 2009;14(30):pii=19282. https://doi.org/10.2807/ese.14.30.19282-en Received: 28 Jul 2009

Abstract

New Zealand, like other southern hemisphere countries with a temperate climate, has been in the winter period with seasonal influenza activity. New Zealand has also experienced a dramatic increase in the number of cases of pandemic influenza A(H1N1)v virus. Early reports from the northern hemisphere at the beginning of the pandemic showed that the virus was sensitive to the antiviral drug oseltamivir. In this study we report that pandemic influenza A(H1N1)v viruses currently circulating in New Zealand are sensitive to oseltamivir, but seasonal influenza A(H1N1) viruses – the co-circulating predominant seasonal strain, is resistant to oseltamivir.