ISLAMABAD, Feb. 13 (Xinhua) — Two environmental samples from Pakistan have tested positive for wild poliovirus type 1, the Pakistani Health Ministry said Tuesday.
The virus was isolated from a sewage sample collected from the Sibi district of southwest Balochistan province on Jan. 15 and another sample collected from Peshawar city of northwest Khyber Pakhtunkhwa province on Jan. 22, the health ministry said in