Boletin cambios curvas · Wild Poliovirus*, 29 Jun 2004 to 28 Jun 2005 *Excludes viruses detected from environmental surveillance and vaccine derived polio viruses. The boundaries

W ild Poliovirus*, 29 Jun 2004 to 28 Jun 2005

*E xcludes viruses detected from environmentalsurveillance and vaccine derived polio viruses.

The boundaries and nam es s how n and the des ignations us ed on this m ap do not imp ly the express ion of any op inion whats oever on the part of the W orld H ealth O rgan ization c onc er ning the legal s tatus of any c oun tr y, territory, c ity or area or of its au thorities , or c onc erning the delim itation of its frontiers or boundaries . D otted lines on m aps repres ent approxim ate border lines for wh ich there m ay not yet be full ag reem ent. W HO 2005. All righ ts res erved

Case o r outbreak following im porta tion

Endem ic countries

W ild virus type 1W ild virus type 3W ild virus type 1 & 3

R e-estab lished transm ission countries

Data in W HO HQ as of 28 Jun 2005

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