vaccine-associated polio

From trivalent to bivalent oral poliovirus vaccine

For the first time since April of 1955, recipients of poliovirus vaccine will no longer receive all three serotypes. This past Sunday the World Health Organization orchestrated a synchronized switch from trivalent to bivalent oral poliovirus vaccine (OPV) in 150 countries. The reason for the switch is clear: type 2 poliovirus was declared eradicated last year, and the …

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The switch from trivalent to bivalent oral poliovirus vaccine: Will it lead to polio?

In four months, 155 countries will together switch from using trivalent to bivalent oral poliovirus vaccine. Will this change lead to more cases of poliomyelitis? There are three serotypes of poliovirus, each of which can cause paralytic poliomyelitis. The Sabin oral poliovirus vaccine (OPV), which has been used globally by WHO in the eradication effort, is …

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TWiV 36: Pandemic

On episode #36 of the podcast “This Week in Virology”, Vincent, Alan, Dick, and Hamish Young discuss the 2009 influenza pandemic, first 2009 H1N1 vaccine, hunting mosquitoes with midges, vaccine-associated polio in India, and adenoviruses. [powerpress url=”http://traffic.libsyn.com/twiv/TWiV036.mp3″] Click the arrow above to play, or right-click to download TWiV #36 or subscribe in iTunes or byemail.

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