The Variety of Human Virus Evolution
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Walter M. Fitch
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Article
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1996
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Elsevier Science
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English
β 617 KB
There have been many wise suggestions of ways that evolution may occur but those ways seem often hard to support with good examples. Viruses have proven to be replete with some of these items. This paper reviews work that shows: (1) very fast rates of evolution; (2) positive Darwinian selection with