Oral Polio Vaccine Causes Nearly All Cases of Paralytic Polio
Despite the introduction in March 2021 of a reportedly more stable and safer oral polio vaccine (OPV) called the novel oral polio vaccine type 2 (nOPV2), cases of circulating vaccine-derived polio (cVDPV) paralysis continue to be reported around the world, Ironically, continuing OPV vaccine campaigns in underdeveloped countries appears to be the main reason the […]
CDC May Bring Back Oral Polio Vaccine in U.S.
In response to the first confirmed case of polio in the United States since 2013 this past September and the subsequent detection of the polio virus in New York City wastewater, officials at the U.S. Centers for Disease Control and Prevention (CDC) are now considering recommending a return to use of the live attenuated oral […]
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
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
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 […]
