Peru has reported vaccine-derived poliovirus type 1 (VDPV1) in a child who developed paralysis symptoms in late December, the Pan American Health Organization (PAHO) said yesterday in its latest polio update.
The 16-month-old boy is unvaccinated and had no travel history. He is from an indigenous community in Datem del Maranon province in northern Peru. The virus findings were confirmed by the Oswaldo Cruz Foundation in Brazil. Investigators haven't found any other acute flaccid paralysis (AFP) cases in town where the boy lives, but they noted recent declines in third-dose polio vaccine coverage and nine Guillain-Barre syndrome cases over the past year, all in adults.
PAHO said the VDPV1 case in Peru, the circulating vaccine-derived poliovirus type 2 (cVDPV2) case reported in the United States in 2022, and the detection of the virus in wastewater in the United States and Canada underscores the importance of high vaccine coverage.
Pakistan, DRC, and Indonesia report more polio cases
In other polio developments, three other countries reported new cases, according to the latest weekly update from the Global Polio Eradication Initiative. Pakistan reported a wild poliovirus type 1 (WPV1) case in a patient from Khyber Pakhtunkhwa province whose AFP onset occurred on February 20, marking its first case of the year.
Elsewhere, the Democratic Republic of Congo reported two more cVDPV1 cases and three cVDPV2 cases, all with illness onsets in 2022. Also, Indonesia reported a cVDPV2 case from Java province involving a patient with a February 20 onset of paralysis, the country's third case of 2023.