The extraordinary evolution of reticuloendotheliosis viruses

[unable to retrieve full-text content]A new study reveals that reticuloendotheliosis viruses, which originated in mammals, spread to birds as a result of medical intervention.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_environment/~3/hYzLM2YrUjY/130827204335.htm

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