Highly Sensitive and Quantitative Detection of the H274Y Oseltamivir Resistance Mutation in Seasonal A/H1N1 Influenza Virus

Abstract excerpt

A C-to-T transition mutation in the neuraminidase gene from seasonal A/H1N1 causes a His-to-Tyr mutation at amino acid position 275 (H274Y, universal N2 numbering), conferring resistance against oseltamivir (Tamiflu). This mutation was first detected in clinical samples in Europe during the 2007-2008 influenza season. Viruses with this mutation reached a prevalence of ∼11% by the end of the season in North...

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