The UK sheep had inflamed mammary gland much like infected cows in US.

Since a single case last week, at least 9 more have been reported with more pending.

The interview downplayed the disease, maligned vaccines, touted unproven treatments

Vacancies in a key office of pandemic preparedness raise concern.

It took nearly two years for doctors to figure out the cause of his chest pain.

"Kennedy’s war on vaccines has started," one researcher said.

Since 2000, when measles was eliminated from US, only three years had higher cases.

Babies 6-11 months should get extra MMR dose for some domestic travel, experts say.

Schools across the country are cutting back as US research takes "severe blow."

There are many risks from drinking, but high cholesterol doesn't seem to be one.