Pakistani authorities have detected wild poliovirus type-1 in three children from Balochistan and one child from Khyber Pakhtunkhwa . . .
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Pakistani authorities have detected wild poliovirus type-1 in three children from Balochistan and one child from Khyber Pakhtunkhwa.
Pakistani authorities have detected wild poliovirus type-1 in three children from Balochistan and one child from Khyber Pakhtunkhwa . . .
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