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There has been a decrease in consultations for influenza-like illness through sentinel surveillance in week 43 (19-25 October 2009).
Up to 25 October 2009, a total of 4879 influenza viruses have been reported through sentinel (622, 13%) and non-sentinel surveillance (4257, 87%). Four influenza viruses were reported in week 43: two as pandemic (H1N1) 09 and two as A (not sub-typed) from the non-sentinel surveillance. Pandemic (H1N1) 09 has become the predominant strain among all influenza viruses. Seasonal A (H1N1) strain has been the predominant strain among all seasonal influenza viruses.
Up to 25 October 2009, a total of 4879 influenza viruses have been reported through sentinel (622, 13%) and non-sentinel surveillance (4257, 87%). Four influenza viruses were reported in week 43: two as pandemic (H1N1) 09 and two as A (not sub-typed) from the non-sentinel surveillance. Pandemic (H1N1) 09 has become the predominant strain among all influenza viruses. Seasonal A (H1N1) strain has been the predominant strain among all seasonal influenza viruses.
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