But a version of the virus that arose naturally from the weakened polio virus used in vaccination is increasing, What is called circulating vaccine-derived poliovirus (cVDPV) is increasing in both ...

cVDPV is present in about 30 other nations, including the Ukraine, Egypt, and Algeria. [Related: “What to know about polio boosters, oral vaccines, and your medical history records.”] ...

The largest recorded outbreak of a circulating vaccine-derived poliovirus (cVDPV), detected in Nigeria, provides a unique opportunity to analyze the pathogenicity of the virus, the clinical ...

1 The detection of this outbreak was aided by the development and implementation of improved molecular diagnostics, which were also used to demonstrate that cVDPV outbreaks had occurred in the ...

In 2012, more countries reported cases of this "circulating vaccine-derived poliovirus" (cVDPV) than wild poliovirus (WPV). The original plan was for every country to stop using live vaccine ...

For the new study, researchers looked at the largest recorded outbreak of a cVDPV to date, which began to circulate in Nigeria in 2005. The authors examined data from 278 children paralyzed by this ...

Type 2 cVDPV (cVDPV2) now accounts for most of the cVDPV cases globally, and is a major challenge to achieving global eradication. In Nigeria, 415 cases of cVDPV2 were reported in 2021 2 which ...

Dr Bakyaita said that the increasing number of cVDPV outbreaks across Africa was a reminder that countries could not afford to let their guard down, and must continue reaching every child with the ...

The World Health Organization (WHO) is contemplating discontinuing the use of an oral polio vaccine that’s been linked to ongoing outbreaks of the virus in the developing world. WHO is weighing the ...

He noted that despite strong political commitment, Nigeria has continued to face operational challenges hindering the complete eradication of poliovirus Nigeria has spent $500 million on polio ...

He noted that the continued vaccination drive is aimed at preventing outbreaks of Circulating Vaccine-Derived Poliovirus (cVDPV), which remains a threat due to population movement and low immunity ...