The recent killings of nine health workers trying to vaccinate Pakistani children against polio is likely to have a chilling effect on the country's polio eradication efforts, writes Peter J. Hotez, the institute's fellow in disease and poverty fellow, in the Baker Institute Blog. "This concern is especially relevant for Karachi, where at least five of the workers died and where vaccination efforts have now been suspended," he says. "Women comprise most of the health workforce for polio eradication efforts in Pakistan -- for the very practical reason that it is easier for a woman to go into a household where other women may be present." Pakistan is one of only three countries in the world where polio is still endemic.

Read more about the issue in "Polio and vaccine diplomacy in Pakistan," by Peter J. Hotez.