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Antiviral Res. 2007 May;74(2):159-62. Epub 2006 Nov 20.

Characterization of drug-resistant recombinant influenza A/H1N1 viruses selected in vitro with peramivir and zanamivir.

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  • 1Research Center in Infectious Diseases of the CHUQ-CHUL and Laval University, Qu├ębec City, Que., Canada.

Abstract

There is a limited information with regard to the neuraminidase (NA) mutations conferring resistance to peramivir and zanamivir in the influenza N1 background. In this study, an influenza A/WSN/33 (H1N1) recombinant virus was passaged under peramivir or zanamivir pressure. The peramivir-selected variant had a H274Y mutation in the neuraminidase (NA) gene conferring resistance to peramivir and oseltamivir but susceptibility to zanamivir. The zanamivir-selected variant had a massive deletion in the region encoding the NA active center and an A200T hemagglutinin mutation. This variant exhibited reduced susceptibility to zanamivir with a drug-dependent phenotype.

PMID:
17137644
DOI:
10.1016/j.antiviral.2006.10.012
[PubMed - indexed for MEDLINE]
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