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2009 Novel H1N1 Flu: International Situation Update: May 28, 2010
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May 28, 2010
[PDF-235.33 KB]
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Journal Article:Human Influenza A (H1N1), 2009
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Description:This report provides an update to the international flu situation using data collected through May 23, 2010, and reported by the World Health Organization (WHO) on May 28.
WHO continues to report laboratory-confirmed 2009 H1N1 flu deathsExternal Web Site Icon on its web page. These fatal cases are an under-representation of the actual numbers as many deaths are never tested or recognized as influenza related.
The most active areas of 2009 H1N1 influenza transmission are in the tropical regions of the Caribbean and Southeast Asia. In the tropical regions of South America, 2009 H1N1 and seasonal influenza viruses continue to co-circulate at low levels. Influenza B has been reported at low but increasing levels in certain South American countries.
Influenza activity is low in most parts of the temperate Northern and Southern hemispheres, except for Chile, which has localized areas of 2009 H1N1 influenza activity. Intermittent detections of seasonal influenza A (H3N2) and 2009 H1N1 influenza viruses have been recently reported in Australia. In the European region, influenza activity is low and at levels normally seen during the summer. In addition, a low percentage (4.5%) of respiratory specimens collected in the European region through May 23, 2010, and submitted for laboratory testing have tested positive for influenza. Of the 80 influenza virus detections reported this week, 86% were influenza B. In Sub-Saharan Africa, 2009 H1N1 influenza activity in West Africa has now largely subsided.
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