Valt inlägg:
Polio vaccine blamed for outbreaks in Nigeria http://www.msnbc.msn.com/id/32418446/ns/health-infectious_diseases/ "Nigeria and most other poor nations use an oral polio vaccine because its cheaper, easier, and protects entire communities. But its made from a live polio virus which carries a small risk of causing polio. In even rarer instances, the virus in the vaccine can MUTATE into a deadlier version that ignites new outbreaks.A virologist with the U.S. Centers for Disease Control and Prevention says genetic analysis proves such mutated viruses have caused at least seven separate outbreaks in Nigeria." Helst på Svenska!, jag vet, men kunde inte hålla mig :
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