swine flu

On Saturday, the World Health Organization declared the spreading swine flu a "public health emergency of international concern." Mexico, the epicenter of the outbreak, has suffered dozens of deaths with a suspected link to the virus. In the U.S., milder cases have been confirmed in a handful of states. In both Buzz and on Yahoo! Search, "swine flu symptoms" is the No. 1 related query; you can read up on those and other facts about the disease on the U.S. Centers for Disease Control information page. And Yahoo! News will be providing up-to-the minute coverage.