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Study: Flu virus can become dormant in ice

Nov. 28, 2006 at 1:46 PM   |   Comments

BOWLING GREEN, Ohio, Nov. 28 (UPI) -- A U.S. biologist says it is possible for influenza virus strains to remain dormant for long periods of time in ice, before again causing illnesses.

Scott Rogers of Bowling Green (Ohio) State University admits his theory sounds as if it came from a campy 1950s horror movie, but he says he believes it's a very real possibility.

"We've found viral RNA in the ice in Siberia, and it's along the major flight paths of migrating waterfowl" whose pathways take them to North America, Asia and Australia, and interconnect with other migratory paths to Europe and Africa, explained Rogers.

Viruses, he says, can be preserved in ice for long periods of time, and then released decades later when humans might no longer be immune to them. For instance, he said survivors of the worldwide flu pandemic of 1918 had immunity to the responsible strain -- called H1N1 -- but that immunity has died with them, meaning a recurrence could take hold as an epidemic.

The research Rogers and his Russian and Israeli colleagues conducted appears in the December issue of the Journal of Virology.

© 2006 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
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