polio vaccine drive

Seven Pakistani Policemen Killed During Anti-Polio Drive

By Syed Raza Hassan KARACHI, Pakistan, April 20 – Unidentified gunmen attacked policemen guarding medical workers administering polio vaccinations in Pakistan on Wednesday, killing seven of them, in the latest violence against efforts to eradicate the crippling childhood disease. The policemen were killed in two attacks in the city of Karachi, a sprawling port metropolis

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