By Jennifer Rigby, Reuters
Photo: KATERYNA KON/SCIENCE PHOTO LIBRARY
Two cases of the deadly Nipah virus in India have prompted authorities in Thailand and Malaysia to step up airport screening to prevent the spread of the infection. But what is Nipah virus, and how worried should people be?
What is Nipah virus?
Nipah is a rare viral infection that spreads largely from infected animals, mainly fruit bats, to humans. It can be asymptomatic but it is often very dangerous, with a case fatality rate of 40 percent to 75 percent, depe
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