KHAR, Pakistan — Gunmen on motorcycles opened fire Wednesday on police escorting a team of polio workers during a door-to-door vaccination campaign in northwestern Pakistan, killing an officer and a ...

ISLAMABAD (AP) — Pakistani authorities on Monday launched the final nationwide anti-polio vaccination campaign of the year, aiming to protect 45 million children after more than two dozen cases of the ...

In the 1940s and 1950s, hospital wards in the U.S. were filled with iron lungs helping many children, and some adults, who had polio breathe and stay alive. The use of polio vaccines have helped make ...

Americans who plan to visit any of the 32 countries on the CDC’s polio list in coming weeks and months should take extra precautions before their trips to protect against polio. The U.S. Department of ...