IMED2007_Heymann.pdf - International Society for Infectious ...
IMED2007_Heymann.pdf - International Society for Infectious ...
IMED2007_Heymann.pdf - International Society for Infectious ...
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Polio world-wide, active transmission,<br />
1 January 2007<br />
1,968 cases, 2006<br />
district with type 1 polio<br />
Reservoir areas with types 1 and 3 polio<br />
February 2007<br />
World Health Organization 28