YOSEMITE NATIONAL PARK, Calif. (AP) — Federal investigators probing the hantavirus outbreak blamed for three deaths at Yosemite National Park recommended on Monday that design changes to tent cabins and other privately run lodging first be reviewed by National Park Service officials.

WASHINGTON (AP) — New research is challenging medical guidelines that say people with a heart-zapping device in their chests should avoid intense sports like basketball and soccer in favor of golf or bowling.

LONDON (AP) — More than a decade ago, British parents refused to give measles shots to at least a million children because of now discredited research that linked the vaccine to autism. Now, health officials are scrambling to catch up and stop a growing epidemic of the contagious disease.