H1N1 flu, sometimes called swine flu, is an infection caused by
a kind of influenza virus that spreads from one person to another. In 2009, the U.S. Centers for Disease Control and Prevention reported an
outbreak of this strain of flu in Mexico, the United States, and other
countries. The virus that causes this type of flu is the
When you have H1N1 flu, you may feel tired and achy
and have a sore throat, a fever, and a cough. Most of the time, the illness is
not serious. But in some cases H1N1 flu can be severe and can lead to
pneumonia, serious lung problems, and death.
The H1N1 swine flu virus appeared in the U.S. in April 2009 and never went away. After sweeping the globe, U.S. H1N1 swine flu cases surged as schools opened in the fall. What is H1N1 swine flu? What can we do about it? WebMD answers your questions.
What is swine flu?
What are swine flu symptoms?
Who is at highest risk of H1N1 swine flu?
Help! I've been exposed to swine flu. What should I do?
If I think I have swine flu,...