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Antiviral drugs for treatment of patients infected with pandemic (H1N1) 2009 virus
Journal article   Open access   Peer reviewed

Antiviral drugs for treatment of patients infected with pandemic (H1N1) 2009 virus

David M Hartley, Noele P Nelson and Eli N Perencevich
Emerging Infectious Diseases, Vol.15(10), pp.1851-1852
2009
DOI: 10.3201/eid1511.090720
PMCID: PMC2857246
PMID: 19891884
url
https://doi.org/10.3201/eid1511.090720View
Published (Version of record) Open Access

Abstract

To the Editor: The emergence of influenza A pandemic (H1N1) 2009 virus in North America and associated illness and death suggest that humanity faces a dangerous threat. Viruses isolated from a sample of patients with confirmed cases in early phases of the outbreak demonstrated resistance to amantadine and rimantadine. At present, circulating viruses appear to be largely susceptible to the neuraminidase inhibitors oseltamivir and zanamivir, although oseltamivir resistance has been observed in recent cases in Europe, Asia, and North America (1). More recently, pandemic (H1N1) 2009 virus resistance to oseltamivir emerged during treatment of 2 immunosuppressed patients in the United States. Such cases demonstrate that oseltamivir resistance can emerge in infected persons treated with oseltamivir. To date, all isolates tested have been susceptible to zanamivir.

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