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Euro Surveill. 2011 Jun 9;16(23). pii: 19884.

Increased detection in Australia and Singapore of a novel influenza A(H1N1)2009 variant with reduced oseltamivir and zanamivir sensitivity due to a S247N neuraminidase mutation.

Author information

  • 1World Health Organization Collaborating Centre for Reference and Research on Influenza, North Melbourne, Victoria, Australia. Aeron.Hurt@influenzacentre.org

Erratum in

  • Euro Surveill. 2011;16(27). pii: 19909.

Abstract

A novel influenza A(H1N1)2009 variant with mildly reduced oseltamivir and zanamivir sensitivity has been detected in more than 10% of community specimens in Singapore and more than 30% of samples from northern Australia during the early months of 2011. The variant, which has also been detected in other regions of the Asia-Pacific, contains a S247N neuraminidase mutation. When combined with the H275Y mutation, as detected in an oseltamivir-treated patient, the dual S247N+H275Y mutant had extremely high oseltamivir resistance.

PMID:
21679678
[PubMed - indexed for MEDLINE]
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