Information and Resources for H1N1
What is 2009 H1N1 (swine flu)?
2009 H1N1 (sometimes called “swine flu”) 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 spreading from person-to-person worldwide, probably in much the same way that regular seasonal influenza viruses spread. On June 11, 2009, the World Health Organization
(WHO) signaled that a pandemic of 2009 H1N1 flu was underway.
This flu season, many people may get sick with 2009 H1N1 flu, as well as with seasonal flu.
The first cases of 2009 H1N1 flu were reported in the spring of 2009. Since the virus is new, most people are not immune to it. That means many more people may become sick than usual this flu season.
