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West Nile Virus
Research from Columbia University broadens understanding of west nile virus
November 9th, 2008
According to a study from the United States, "Eastern gray squirrels (Sciurus carolinensis) have shown high West Nile virus (WNV) seroprevalence, and WNV infection has been suggested as a cause of morbidity and mortality in this species. We experimentally infected nine eastern gray squirrels with WNV to determine the clinical effects of infection and to assess their potential role as amplifying hosts." "We observed no morbidity or mortality attributable to WNV infection, but lesions were apparent in several organs. We detected mean viremias of 10(5.1) and 10(4.8) plaque-forming units (PFU)/mL on days 3 and 4 postinfection (DPI) and estimated that -2.1% of Culex pipiens...
Source: Medical Letter on the CDC & FDA (2008-11-09)
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