What is swine flu?
Like people, pigs can get influenza (flu), but swine flu viruses aren't the same as human flu viruses. Swine flu doesn't often infect people, and the rare human cases that have occurred in the past have mainly affected people who had direct contact with pigs. But the current swine flu outbreak is different. It's caused by a new swine flu virus that has spread from person to person — and it's happening among people who haven't had any contact with pigs.
How is the current swine flu different?
The current swine flu outbreak is caused by a new swine flu virus that has spread from person to person -- and it's happening among people who haven't had any contact with pigs. Here is a picture of the new swine flu virus, colorized and magnified.
more about swine flu
more about swine flu
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