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VetMed Resource

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Abstract

Environmental factors profoundly affect vectorial capacity, governing dynamics and intensity of vector-vertebrate contact in time and space (e.g. seasonal vector population densities, biting rates, and feeding frequencies). Temperature influences vector developmental rates and life history...

Author(s)
Mullens, B. A.; Gerry, A. C.; Lysyk, T. J.; Schmidtmann, E. T.
Publisher
Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise 'G. Caporale', Teramo, Italy
Citation
Veterinaria Italiana, 2004, 40, 3, pp 160-166
Abstract

Defining predictors for insect-transmitted virus (arbovirus) disease cycles requires an understanding of the molecular interactions between the virus and vector insect. Studies of orbiviruses from numerous geographic regions have indicated that virus genes are affected by insect population...

Author(s)
Campbell, C. L.; McNulty, M. J.; Letchworth, G. J.; Wilson, W. C.
Publisher
Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise 'G. Caporale', Teramo, Italy
Citation
Veterinaria Italiana, 2004, 40, 3, pp 390-395
Abstract

The overwintering mechanism of bluetongue virus (BTV) has eluded researchers for many years. It was recently proposed that ovine gamma delta T-cells may become persistently infected with BTV, and serve as a reservoir for infection of naive vectors in the next transmission season. Since cattle are...

Author(s)
White, D. M.; Mecham, J. O.
Publisher
Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise 'G. Caporale', Teramo, Italy
Citation
Veterinaria Italiana, 2004, 40, 4, pp 513-519
Abstract

Historical surveillance for bluetongue virus (BTV) exposure in the United States of America (USA) has relied on periodical serological surveillance using samples collected from cattle at slaughter. Most of this surveillance has been focused on the north-eastern portion of the USA due to the lack of ...

Author(s)
Dargatz, D.; Akin, K.; Green, A.; Herrero, M.; Holland, S.; Kane, A.; Knowles, D.; McElwain, T.; Moser, K. M.; Ostlund, E. N.; Parker, M.; Schmidtmann, E. T.; Seitzinger, A.; Schuler, L.; Stevens, G.; Tesar, L.; White, L.; Williams, L.; Wineland, N.; Walton, T. E.
Publisher
Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise 'G. Caporale', Teramo, Italy
Citation
Veterinaria Italiana, 2004, 40, 3, pp 182-183
Abstract

The distribution of the bluetongue viruses (BTV) is limited to geographic areas containing competent vector species. All BTV-competent species belong to the genus Culicoides. In the New World, two different BTV epidemiological systems (episystems) occur. Culicoides sonorensis is responsible for...

Author(s)
Tabachnick, W. J.
Publisher
Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise 'G. Caporale', Teramo, Italy
Citation
Veterinaria Italiana, 2004, 40, 3, pp 145-150

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