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11 Dec 2007 description

Excludes viruses detected from environmental surveillance and vaccine derived polio viruses.

04 Dec 2007 description

Excludes viruses detected from environmental surveillance and vaccine derived polio viruses.

27 Nov 2007 description

Excludes viruses detected from environmental surveillance and vaccine derived polio viruses.

15 Nov 2007 description

Nature unleashed its fury with unprecedented violence on the morning of 26 December 2004. What promised to be a pleasant, post-Christmas Sunday, turned into one of the biggest disasters humankind had ever known. Six countries of the WHO South-East Asia Region bore the brunt of the tsunami. WHO coordinated global efforts to address post-disaster health consequences.