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Posted Sun Jan 9 2011: from
UPI:
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Tree die-off presents human health risk http://apocadocs.com/s.pl?1294585322
A recent die-off of aspen trees in the U.S. West has swelled the population of rodents that carry a virus that can be deadly to humans, researchers say.
A tree-killing syndrome called sudden aspen decline, which has wiped out swaths of trees across the West in the past decade, has changed the numbers of creatures living around the trees, including some carriers of human disease, ScienceNews.org reported.
Deer mice at hard-hit sites in 2009 were almost three times as likely to carry sin nombre virus, which can be fatal to humans, compared with mice in less-ravaged aspen stands, researchers from Fort Lewis College in Durango, Colo., said.
People inhaling virus wafting from mouse urine or saliva can get hantavirus pulmonary syndrome, a disease that kills more than one-third of its victims.
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