نتایج جستجو برای: the nile appetite
تعداد نتایج: 16057712 فیلتر نتایج به سال:
background: geographic distribution of west nile virus (wnv) is heterogeneous in iran by a high circulation in the southern-western areas. the objective of our study was to determine environmental and climatic factors associated with the risk of wnv equine seropositivity in iran. methods: serological data were obtained from a serosurvey conducted in equine population in 260 districts in iran. ...
rodlet cells are frequently found in teleost fishes and although their role in organisms is not completely understood. the occurrence of these cells are related to stress and may undergo changes in contaminated environments, thereby allowing their use as biomarkers. this hypothesis is tested in the present study. thirty specimens of oreochromis niloticus were divided into three groups, two grou...
From July to September 1999, a widespread outbreak of meningoencephalitis associated with West Nile virus (Flavivirus, Flaviviridae) occurred in southern Russia, with hundreds of cases and dozens of deaths. Two strains of West Nile virus isolated from patient serum and brain-tissue samples reacted in hemagglutination-inhibition and neutralization tests with patients' convalescent-phase sera and...
Introduction: West Nile virus is an RNA virus that was first isolated in a patient in the West Nile province of Uganda 1937 and has since than spread to the Middle East, Europe, and found its way to the United States in 1999 when the first case of West Nile Virus was reported in Queens, NY. From 1999 to 2008, there have been a total of about 29,000 cases of which about 12,000 had neuroinvasive ...
780 BioScience • September 2005 / Vol. 55 No. 9 M ecologists and evolutionary biologists are familiar with the saga of the introduced Nile perch (Lates niloticus) in Lake Victoria. The explosion of the lake’s Nile perch population in the 1980s was monitored closely, because it coincided both with a fivefold increase in the economic value of the fishery (Reynolds et al. 1995) and with a halving ...
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