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H1N1 Virus

Studies from Niigata University provide new data on h1n1 virus

Published in Medical Letter on the CDC and FDA, February 21st, 2010

According to recent research from Niigata, Japan, "A substantial increase in oseltamivir-resistant A(H1N1) influenza viruses was reported in Europe in late 2007. To monitor the antiviral susceptibility profile of human A(H1N1) influenza viruses in Japan during the 2007-2008 and 2008-2009 seasons."

"Viruses were obtained from respiratory samples of patients with influenza collected in Japan between December 2007 and April 2008 (n = 1046) and between December 2008 and April 2009 (n = 1789). Oseltamivir resistance was determined by an H274Y-specific real-time PCR cycling probe assay and a neuraminidase inhibition assay. Amantadine resistance was assessed by sequencing the...

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