Polio Outbreaks in Burundi and Other African Nations Caused by Vaccine Strain of the Virus
The government of Burundi has declared a national public health emergency due to an outbreak of live vaccine strain poliovirus infections in that country. A mutated strain of the vaccine strain poliovirus, which originally came from the type 2 monovalent oral polio vaccine (mOPV2), was identified in a four-year-old boy in western Burundi and in […]
