Flu Pandemics May Lurk In Frozen Lakes

Flu Pandemics May Lurk in Frozen Lakes The close grippe pandemic may be hibernating in an dick glacier or nipping Siberian lake, waiting for rising temperatures to mint it free. Then birds can deliver it back to civilization. New verbal expression into suggests an grippe virus could go into hiding in the pull together when earlier generations of humans, birds or different hosts developed immunity difficult enough to drive the virus to extinction. Its a motley of evolutionary loophole. It can bring a set of viral genes back to life that have been stock-still for centuries or thousands of years, show environmental biologist Scott Rogers of Bowling Green State University in Ohio. If hosts havent seen the virus in a while, medieval there may be no active immunity. Rogers and Zeynep Koçer, of Bowling Green State University in Ohio, found that influenza viruses can easily survive freezing in micturate water, and emerge from the melting ice strong enough to victimize bird eggs. They presented their latest evidence today at the American Society for Microbiology meeting in Philadelphia. Rogers calls this evolutionary strategy genome recycling. He thinks migrating waterfowl regularly deliver influenza viruses to Arctic glaciers and lakes, where it becomes frozen in ice.

When the ice melts, birds pick the virus up and fare it back south where it can infect humans. The research comes amid a global alert over a new swine flu strain, H1N1, that has so far killed at least 80 hold out and could be headed toward full-blown pandemic. Influenza pandemics have struck sporadically in historic times. The worst in recent computer storage were the Spanish flu in 1918, the Asian flu in 1957 a! nd the Hong Kong flu in 1968. These pandemics are hard to predict or trace back to their origins. Some researchers have proposed Siberia as a hub for the evolution of flu pandemics that eventually emerge in another(prenominal) locations carried there by birds. Scientists have in fact incur influenza viruses frozen in the ice and mud of lakes in...If you wad to get a full essay, order it on our website: OrderEssay.net

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