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Category: Vaccine-derived poliovirus (VDPV)

Posted on January 11, 2020January 11, 2020

Polio continues to remain a public health emergency

With the continued risk of international spread, WHO has announced that polio will remain a public health emergency for three more months. Polio was declared as public health emergency of…

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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 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 May 1, 2017May 1, 2017

Number of wild poliovirus cases drop in Pakistan, Afghanistan

In the last six months, there have been only eight wild-type poliovirus (type 1 and type 3) cases reported in Afghanistan and Pakistan, down from 32 cases during the same…

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Posted on December 28, 2016December 29, 2016

Top health stories of 2016

On the health front, the year 2016 witnessed a few setbacks and but also a few positive developments. Here are the most important health developments of 2016 1. Trial results…

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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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Posted on April 24, 2016April 29, 2017

Global ‘switch’ to reduce vaccine-derived polio cases

Beginning Monday, April 25, India will stop using the oral polio vaccine (OPV) with all three strains of the poliovirus (type 1, type 2 and type 3) and instead use…

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