sewage samples
PESHAWAR: Wild poliovirus has been detected in sewage samples from Peshawar and Hangu districts in…
ISLAMABAD: Health sources have confirmed presence of poliovirus in sewage samples collected from seven major…
According to sources, 93 percent sewage samples collected from four provinces of the country found…
In all four provinces, sewage water samples were found free from the polio-virus in recent…




