We humans are the greatest of earth's parasites - Martin H. Fischer


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Parasites inside your body could be protecting you from disease

It’s fair to say parasites are generally bad for their hosts. Many cause disease and death so, like most species, we humans usually try to avoid infection at all costs. But it turns out that some parasites, although potentially harmful in isolation, can in fact help hosts to cope with more deadly infections.

Understanding when parasitism is beneficial has important implications for how we manage infectious diseases, but we currently know very little about this phenomenon. Our new study, published in Evolution Letters, tells us that parasites can readily evolve different mechanisms to defend their hosts from other infections, which suggests that host protection should be common in…

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Last Updated : Tuesday, September 24, 2019