Influenza – History of Medicine
History of influenza: Influenza comes from chickens: this is a clay hen whistle from Mohenjo Daro (ca. 2700 BC, now in Brooklyn Museum) What is influenza? Influenza is a virus that mostly [...]
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What is a virus? Evolution and biology
The virus that causes AIDS (greatly magnified) HIV image copyright Russell Knightley Nobody is quite sure whether viruses are living things or not. The first living things may have come [...]
