“It is tragic but not unexpected that the use of live virus Sabin vaccines would cause the spread of vaccine-derived #polio given the propensity of these viruses to back-mutate into their paralytic form.

“It is even more alarming that the paralytic form is now circulating among the population of the Congo’s and Burundi’s children.” — Dr. Brian Hooker, Ph.D., P.E., CHD's chief scientific officer



Seven children were paralyzed by vaccine-derived polio linked to the new nOPV2 polio vaccine developed by the Bill & Melinda Gates Foundation, according to health officials in the Democratic Republic of the Congo and Burundi and the Global Polio Eradication Initiative (GPEI), which on Thursday announced the news.