The poliomyelitis virus was diagnosed “in a four-year-old child from Isalé district, western Burundi, who had not been vaccinated against poliomyelitis”, the WHO said in a statement. Two other children, who had contact with the four-year-old boy, were also infected.
Vaccine-derived poliovirus (VDPV), specifically a variant of poliovirus type 2 derived from oral polio vaccine, has been identified in Burundi, according to the advisory.
