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Sciences > Disease & Illness What is the role of viruses on planet Earth?

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Tuesday, September 18th, 2007

Viruses are an organism which can be both harmful and helpful. They have existed since the solar system developed. Generally people think of viruses as a bad thing. Something which caused illness and at times even death. Actually they can be a good thing when they attack our immune system resulting in it becoming stronger so that it is better able to ward off more harmful viruses.

Viruses are able to mutate. This means that they can change and adapt to become resistant to being killed. Antibiotics are a substance which can over power and kill a ...

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