Possible overwintering mechanism of bluetongue virus in vectors
نویسندگان
چکیده
(1) United States Department of Agriculture (USDA)-Agricultural Research Service (ARS), Arthropod-Borne Animal Diseases Research Laboratory, Dept. 3354, 1000 E. University Avenue, Laramie, WY 82071, United States of America (2) Present address: Centers for Disease Control and Prevention, NCID/DVRD/Special Pathogens Branch, 1600 Clifton Rd NE, Building 15-SB, Mailstop G14, Atlanta, GA 30333, United States of America (3) Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, CO 80523-0100, United States of America
منابع مشابه
Quantitative assessment of the probability of bluetongue virus overwintering by horizontal transmission: application to Germany
Even though bluetongue virus (BTV) transmission is apparently interrupted during winter, bluetongue outbreaks often reappear in the next season (overwintering). Several mechanisms for BTV overwintering have been proposed, but to date, their relative importance remain unclear. In order to assess the probability of BTV overwintering by persistence in adult vectors, ruminants (through prolonged vi...
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Bluetongue viruses (BTVs) are economically important arboviruses that affect sheep and cattle. The overwintering mechanism of BTVs in temperate climates has eluded researchers for many years. Many arboviruses overwinter in their invertebrate vectors. To test the hypothesis that BTVs overwinter in their vertically infected insect vectors, Culicoides sonorensis larvae were collected from long-ter...
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Culicoides sonorensis (Wirth & Jones) is the principal North American vector of bluetongue virus (BTV). BTV infection of livestock is distinctly seasonal (late summer and fall) in temperate regions of the world such as California, which has led to speculation regarding vertical transmission of the virus within the midge vector as a potential mechanism for interseasonal maintenance ("overwinteri...
متن کاملSeasonal effects on the prevalence of bluetongue in small ruminants in west Azarbaijan, Iran
BACK GROUND: Bluetongue virus (BTV) is recognized to infect ruminants all around the world, and its prevalence mainly depends on the BTV situation, vectors distribution, weather patterns and susceptibility of the host. Objectives: The purpose of this study was to draw a correlation between the prevalence of BTV antibodies and climate changes in Iranian Azerbaijan Province. METHODS: Sera samples...
متن کاملBluetongue Virus Serotype 8 Reemergence in Germany, 2007 and 2008
Reemerging bluetongue virus serotype 8 (BTV-8) in Germany was detected first in May 2007 in a sentinel cow and in February 2008 in an export heifer. Reemergence was confirmed by retesting the samples, experimental inoculation, fingerprinting analysis, and virus isolation. Overwintering of BTV-8 and continuous low-level infections are assumed.
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