21 agosto 2014
Thanks to effective vaccination, polio is considered nearly eradicated. Each year only a few hundred people are stricken worldwide. However, scientists are reporting alarming findings: a mutated virus that was able to resist the vaccine protection to a considerable extent was found in victims of an outbreak in the Congo in 2010. The pathogen could also potentially have infected many people in Germany.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FBdAmcKDPpM/140821115706.htm
