Only a 10 percent chance of showers today, but a 70 percent chance of flu next month. That's the kind of forecasting health scientists are trying to move toward, as they increasingly include weather data in their attempts to predict disease outbreaks.

The "bugs" of late summer are biting. The nation is having its worst West Nile virus season in a decade, and up to 10,000 people who stayed in California cabins are at risk of hantavirus.

More than 90 cabins in Yosemite National Park were closed several days after the site was found to be at the center of a mouse-borne virus that has been blamed for the deaths of two people, officials said Thursday.

Yosemite officials told 1,700 past visitors on Tuesday they may have been exposed to a rodent-borne disease already blamed for the deaths of two people who stayed at the park.

A man died and a woman became seriously ill after contracting a rare rodent-borne disease that might have been linked to their stay at a popular lodging area in Yosemite National Park, officials said Thursday.