The New York Times reports:
The United Nations suspended all polio-related field activities in Pakistan on Wednesday after more attacks on public health workers attempting to immunize children. Two people were killed and another wounded around the northwestern city of Peshawar.
The shootings followed a day of violence on Tuesday in the port city of Karachi in which four female health workers were killed. The attacks Wednesday brought the death toll from the three-day polio immunization campaign to eight people, most of them women.
