As the U.S. flu season winds down, health officials say the flu vaccine didn’t work very well. It had one of its worst effectiveness rates in more than a decade.

The cluster of infections appears confined to an area of San Mateo County, and no cases have been detected at Point Reyes National Seashore.

Just in case you needed new material for your nightmares, here’s this real-life case report of a woman in Greece who literally sneezed out maggots. Doctors documented the spine-chilling sneeze this ...

Two weeks after scientists confirmed the first-ever outbreak of avian influenza, or bird flu, in elephant seals along the California coast, the disease has spread to other marine mammals, researchers ...

The H5N1 bird flu outbreak in California elephant seals has spread to other marine mammals, including a sea otter and sea lion. But wildlife officials are hopeful the outbreak will remain contained.