Flu.gov contains a wealth of information about seasonal flu, H1N1 or swine flu, and, to a lesser extent, H5N1 also known as bird flu. While most of the site is about current flu issues, the site also contains some historical information about the flu, such as the 1918 flu pandemic. The information provided on this site is voluminous and aims to reach many audiences from the general public, to health care professionals, to government agencies.
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