Continued emergence and changing epidemiology of oseltamivir-resistant influenza A(H1N1)2009 virus, United Kingdom, winter 2010/11

A Lackenby; J Moran Gilad; R Pebody; S Miah; L Calatayud; S Bolotin; I Vipond; P Muir; M Guiver; J McMenamin; A Reynolds; C Moore; R Gunson; CI Thompson; M Galiano; A Bermingham; J Ellis; M Zambon

doi:10.2807/ese.16.05.19784-en

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Continued emergence and changing epidemiology of oseltamivir-resistant influenza A(H1N1)2009 virus, United Kingdom, winter 2010/11
A Lackenby¹ , J Moran Gilad¹ , R Pebody² , S Miah¹ , L Calatayud² , S Bolotin² , I Vipond³ , P Muir³ , M Guiver⁴ , J McMenamin⁵ , A Reynolds⁵ , C Moore⁶ , R Gunson⁷ , CI Thompson² , M Galiano² , A Bermingham² , J Ellis² , M Zambon²
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Affiliations: ¹ Health Protection Agency, Microbiology Services Colindale, London, United Kingdom ² Health Protection Agency, Health Protection Services Colindale, London, United Kingdom ³ Health Protection Agency, Microbiology Services Bristol, United Kingdom ⁴ Health Protection Agency, Microbiology Services Manchester, United Kingdom ⁵ Health Protection Scotland, Glasgow, United Kingdom ⁶ Public Health Wales Microbiology Cardiff, University Hospital of Wales, Cardiff, United Kingdom ⁷ West of Scotland Specialist Virology Centre, Glasgow, United Kingdom

Correspondence:
A Lackenby
angie.lackenby hpa.org.uk
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Citation style for this article: Lackenby A, Moran Gilad J, Pebody R, Miah S, Calatayud L, Bolotin S, Vipond I, Muir P, Guiver M, McMenamin J, Reynolds A, Moore C, Gunson R, Thompson CI, Galiano M, Bermingham A, Ellis J, Zambon M. Continued emergence and changing epidemiology of oseltamivir-resistant influenza A(H1N1)2009 virus, United Kingdom, winter 2010/11. Euro Surveill. 2011;16(5):pii=19784. https://doi.org/10.2807/ese.16.05.19784-en Received: 21 Jan 2011

Abstract

During the winter period 2010/11 27 epidemiologically unlinked, confirmed cases of oseltamivir-resistant influenza A(H1N1)2009 virus infection have been detected in multiple, geographically dispersed settings. Three of these cases were in community settings, with no known exposure to oseltamivir. This suggests possible onward transmission of resistant strains and could be an indication of a possibility of changing epidemiology of oseltamivir-resistant influenza A(H1N1)2009 virus.