The latest outbreak in Mexico of "Swine Flu" is perhaps the most worrying yet, because of the number of deaths already seen and its apparent ability to spread quickly to other countries.
As the name suggests "Swine Flu" is a virus that normally affects pigs, or occasionally humans who have had close contact with pigs. However, this latest swine flu outbreak consists of a new or rare strain, making it very difficult to offer the public an effective vaccine. More...
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