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Japan Tamiflu-Resistant H1N1 Teen Had No Tamiflu Record Print E-mail
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พุธ, 14 ตุลาคม 2009

        TOKYO (Reuters) Oct 08 - A genetic mutation of H1N1 swine flu that is resistant to the antiviral drug Tamiflu has been detected in a Japanese teenager who had not previously been treated with the drug, a Japanese health official said.

The case could mark Japan's first instance of person-to-person transmission of a Tamiflu-resistant strain of the H1N1 flu, but Health Ministry official Takeshi Enami said there was still insufficient evidence to confirm that."We cannot deny that this could be person-to-person transmission, but we are not able to reach that conclusion," Enami said. Japan has had eight cases of new H1N1 patients who were resistant to Tamiflu, he added.The Geneva-based World Health Organization (WHO) said in late September that drug-resistant pandemic flu viruses had appeared infrequently and there was no evidence that they were spreading, but that further cases were likely.The mutation was detected by health officials in Sapporo, northern Japan, in a teenage girl who had developed a fever on Aug. 22. She was given GlaxoSmithkline's Relenza and recovered a day later, the ministry said in a statement.The detected mutation did not worsen the virus, nor were there signs of an unusual rise in new H1N1 cases nearby, it said.
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