Another polio worker shot in Pakistan, six killed in total

PESHAWAR, Pakistan - Another polio worker was shot and badly injured in Pakistan on Wednesday, the latest in a string of attacks that left 6 female health workers dead in 24 hours.
The shooting in the northern city of Peshawar so soon after the other killings calls into question whether the UN-backed campaign to eradicate polio in Pakistan can continue.
It's unclear who is behind the killings.
The Taliban have repeatedly issued threats against the polio eradication campaign and health workers said they received calls telling them to stop working with the "infidels." But a Taliban spokesman said his group was not involved.
A global vaccination campaign has eradicated the disease from everywhere except Pakistan, Afghanistan and Nigeria.