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Progress made in fighting deadly virus spread by pigs and bats mongabay.com July 6, 2005 According to two new reports in Nature and Proceedings of the National Academy of Sciences, scientists have made an important breakthrough in the effort to fight the deadly Nipah virus which killed more than 100 people in 1999. The outbreak, which also resulted in the culling in 1 million pigs across Malaysia, was later traced to fruit bats. Nipah virus was only discovered in 1999 and is part of a new genus of zoonotic viruses related to the Hendra virus, which infected horses and killed two people in Australia in 1994. Nipah virus spreads to humans through contact with infectious animals, usually pigs. Scientists eventually indirectly tied the 1999 outbreak to massive forest fires in southeast Asia. Fruit bats known as flying foxes are the natural hosts of both Nipah and Hendra viruses. Flying foxes generally live deep in the rainforests of the region feeding off nectar and fruit of canopy trees. During 1997-1998, el Nino brought dry conditions to the region that, when coupled with land-clearing for agriculture, lead to extensive forest fires and a haze that shrouded much of southeast Asia for months. The smoke from the fires and drought reduced the amount of fruit available to fruit bats which, in turn, moved into orchards, some of which were near pig farms. Pigs consumed the contaminated fruit dropped by fruit bats and later spread the virus to humans. References This article used information from Nature, Proceedings of the National Academy of Sciences, Reuters, The Straits Times, and the World Health Organization SHARE THIS ARTICLE:
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