On April 29, 2009, the World Health Organization raised its pandemic alert to 5, the secondhighest level. The United States Department of Homeland Security has declared a public health emergency over ...

Experts say there are signs that the most recent outbreak of H1N1 has peaked in the United States. But epidemiologists warn that Thanksgiving travel could help the swine flu make a comeback. Every ...

Those exposed are taking extra precaution to keep the virus from spreading. April 26, 2009— -- When Patrick Henshaw's son became sick last Friday, little did he know that the 18-year-old had ...

A summary of the major developments in the H1N1 outbreak. June 11, 2009— -- Below is a timeline of the events in the rapidly changing flu outbreak. For answers to frequently asked questions and ...