PORTLAND, Ore. (AP) -- The mayor of Portland, Ore., has conceded defeat in an effort to add fluoride to the city's drinking water.

WAGENINGEN, Netherlands (Deutsche Presse-Agentur (dpa)) -- Mosquitoes infected with the malaria parasite are much more attracted to human odours than uninfected ones, according to a study by a team of scientists.

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.

PORTLAND, Ore. (AP) -- While soaking up the rays in what's been an unusually sunny season, Portlanders have broken away from their polite chatter about food, wine and outdoor adventure to fight about whether to fluoridate the water supply.

WASHINGTON (AP) -- Sunbathers headed to the beach this summer will find new sunscreen labels on store shelves that are designed to make the products more effective and easier to use. But despite those long-awaited changes, many sunscreens continue to carry SPF ratings that some experts consider misleading and potentially dangerous, according to a consumer watchdog group.

ROME (AP) -- The latest weapon in the U.N.'s fight against hunger, global warming and pollution might be flying by you right now.

NEW YORK (AP) -- Parents are reporting more skin and food allergies in their children, a big government survey found.

SAN LUIS OBISPO, Calif. (AP) -- Authorities were investigating a valley fever outbreak that sickened 28 workers at solar power plants under construction in Central California.

BRUSSELS (AP) -- The European Union plans to restrict the use of three pesticides to better protect dwindling bee populations.