WHO: Polio Outbreak in Sudan Caused by Oral Polio Vaccine

WHO: Polio Outbreak in Sudan Caused by Oral Polio Vaccine

The World Health Organization (WHO) recently reported that a new poliovirus outbreak in Sudan is linked to an ongoing string of vaccine strain polio outbreaks in Africa caused by continued use of the live attenuated oral polio vaccine (OPV).1 On Aug. 9, 2020, the Federal Ministry of Health in Sudan notified the WHO of the […]

Polio Eradication Stalls with More Wild-Type and Vaccine Strain Polio Outbreaks

Polio Eradication Stalls with More Wild-Type and Vaccine Strain Polio Outbreaks

After 65 years of global polio mass vaccination campaigns, on Oct. 24, 2019 (“World Polio Day”) the World Health Organization (WHO) announced that, along with wild type 2 poliovirus declared eradicated in 2015, wild type 3 poliovirus has been eradicated from the earth.1 The credit for the achievement was given to the Global Polio Eradication […]

“Vaccine-Derived” Polio on the Rise

“Vaccine-Derived” Polio on the Rise

The Global Polio Eradication Initiative (GPEI) last week reported that there have been a total of 22 confirmed cases of vaccine-derived polio paralysis, thus far, in 2019. The latest two cases involve a person from Sichuan province in China and a person in Angola. Other evidence of circulating vaccine strain poliovirus type 2 (cVDPV2) has […]