Researchers find natural section favors parasite fitness over host health

Why do parasites harm their hosts? Classic evolutionary theory predicts that parasites become more virulent because they must transmit themselves between hosts, yet scientists have found little data to support this idea, until now.

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<p><a href="http://www.physorg.com/news129833416.html">Researchers find natural section favors parasite fitness over host health</a></p> <p>Why do parasites harm their hosts? Classic evolutionary theory predicts that parasites become more virulent because they must transmit themselves between hosts, yet scientists have found little data to support this idea, until now.</p>