AIDS is considered to be a new virus, because it has only recently mutated so that it can invade human beings. Virus hunters are now trying to catch another newly created viruses early, so they can take preventative action to keep it from spreading. They’re looking for the Nipah virus in the “hot zones” of Australia, Malaysia, India, Sumatra and Thailand, where it’s transmitted by the fruit bat. It first broke out in Malaysia in 1998 and killed thousands of pigs before it moved on to kill 110 people.
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