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Category: Poliovirus

Posted on October 26, 2019October 26, 2019

Focus must be on reducing vaccine-associated polio cases

Now that wild poliovirus type 3 has been officially declared as eliminated, the only way to reduce the risk of vaccine-associated polio cases is by switching over to oral vaccine…

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Posted on September 20, 2019September 21, 2019

Nigeria on the brink of becoming polio-free

On August 21 this year, Nigeria crossed an important milestone in the eradication of polio when it successfully completed three successive years without a single case of wild poliovirus. The…

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Posted on November 8, 2018November 8, 2018

India eradicated wild polio virus but at what cost

Despite oral polio vaccine causing vaccine-derived poliovirus (VDPV) and vaccine-associated paralytic poliomyelitis (VAPP) cases, India did not switch over from OPV to inactivated polio vaccine (IPV). While circulating VDPV strains…

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Posted on August 2, 2018

Polio outbreaks in Congo raise global concern

The polio endgame is proving to be much more challenging with 28 children becoming paralysed by the circulating type 2 vaccine-derived polioviruses (cVDPVs) in the Democratic Republic of the Congo. It has…

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Posted on June 20, 2016June 20, 2016

When the media created the ‘wild’ type-2 polio virus

The last case of wild type-2 poliovirus was seen in West Bengal way back in 1999.  Since then no child in the world has been stuck by wild type-2 poliovirus…

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