BMC Infectious Diseases, 01 January 2012, Vol.12(1), p.24
Abstract Background Europe was certified to be polio-free in 2002 by the WHO. However, wild polioviruses remain endemic in India, Pakistan, Afghanistan, and Nigeria, occasionally causing polio outbreaks, as in Tajikistan in 2010. Therefore, effective surveillance measures and vaccination campaigns...
Poliomyelitis ; Vaccination ; Seroepidemiology ; Lack of Immunity ; Germany ; Medicine
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