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WHO will switch to type 2 inactivated poliovirus vaccine

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The World Health Organization’s campaign to eradicate poliomyelitis made impressive inroads in 2012: only 212 cases were reported, compared with 620 the previous year; moreover, India remained polio-free. The dark side of this story is that as wild polio is eliminated, vaccine-associated poliomyelitis moves in to take its place. The landmark decision by WHO to replace the infectious, type 2 Sabin poliovaccine with inactivated vaccine is an important step towards eliminating vaccine-associated polio.
 
 

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