Viruses r host specific ie they cannot jump from one species to another then how come aids virus shi

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Viruses are host specific, but for example when it comes to the polio virus, biologists actually infect monkey cells with the virus, and it adapts itself. This creates a new virus that is slow growing in humans because it has been adapted to monkey cells. (this was done to create a live vaccine that the body can naturally defeat) In other words, although AIDS didn't start out as a human virus, they have adapted themselves to infect humans. hope this helps

Viruses r host specific ie they cannot jump from one species to another then how come aids virus shifted from?windows live messenger

Viruses mutate. Life always finds a way to survive.

Viruses r host specific ie they cannot jump from one species to another then how come aids virus shi

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