Evidence suggests that the global swine flu pandemic of 2009 began in central Mexico, according to research supported by the National Institute of Allergy and Infectious Diseases of the National ...

2009 H1N1 (referred to as "swine flu" early on) is a new influenza virus causing illness in people. This new virus was first detected in people in the United States in April 2009. This virus is ...

According to Dr. Tom Frieden, Director of the CDC, there is widespread H1N1 activity in 46 states. H1N1 influenza continues to be a disease primarily involving children and young adults. "Many ...

A top CDC official says concern over the outbreaks has grown since Thursday. April 24, 2009— -- A top federal health official said the government's concern over the swine flu outbreaks in the ...

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 ...

Regarding the April 28 front-page story http://www.washingtonpost.com/wp-dyn/content/article/2009/04/27/AR2009042700814.html "WHO Raises Global Threat Level as ...