Weekly influenza surveillance overview, 3 Oct - 9 Oct 2011 (Week 40)
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During the first week of the influenza season, low influenza activity was notified by all 23 reporting countries. Of 123 sentinel specimens, only two (1.6%) tested positive for influenza. Of eight influenza viruses detected in non-sentinel specimens, six were influenza A viruses and two were B viruses. No hospitalised cases of severe influenza were reported
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