TOMALI, Malawi (AP) — A pinch in the leg, a squeal and a trickle of tears. One baby after another in Malawi is getting the first and only vaccine against malaria, one of history's deadliest and most stubborn of diseases.

The southern African nation is rolling out the shots in an unusual pilot program along with Kenya and Ghana. Unlike established vaccines that offer near-complete protection, this new one is only about 40% effective. But experts say it's worth a try as progress against malaria stalls: Resistance to treatment is growing and the global drop in cases has leveled off.

With the vacc...