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Author |
Mellor, P.S. |
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Title |
African horse sickness: transmission and epidemiology |
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Journal Article |
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Year |
1993 |
Publication |
Veterinary Research |
Abbreviated Journal  |
Vet Res |
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Volume |
24 |
Issue |
2 |
Pages |
199-212 |
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Keywords |
Africa, Northern/epidemiology; African Horse Sickness/epidemiology/*transmission; African horse sickness virus/*physiology; Animals; Arachnid Vectors/microbiology; Ceratopogonidae/*microbiology; Culicidae/microbiology; Horses; Insect Vectors/*microbiology; Portugal/epidemiology; Spain/epidemiology; Ticks/microbiology |
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Abstract |
African horse sickness (AHS) virus causes a non-contagious, infectious, arthropod-borne disease of equines and occasionally of dogs. The virus is widely distributed across sub-Saharan African where it is transmitted between susceptible vertebrate hosts by the vectors. These are usually considered to be species of Culicoides biting midges but mosquitoes and/or ticks may also be involved to a greater or lesser extent. Periodically the virus makes excursions beyond its sub-Saharan enzootic zones but until recently does not appear to have been able to maintain itself outside these areas for more than 2-3 consecutive years at most. This is probably due to a number of factors including the apparent absence of a long term vertebrate reservoir, the prevalence and seasonal incidence of the vectors and the efficiency of control measures (vaccination and vector abatement). The recent AHS epizootics in Iberia and N Africa spanning as they do, 5 or more yr, seem to have established a new pattern in AHS virus persistence. This is probably linked to the continuous presence of adult C imicola in the area. Culicoides imicola is basically an Afro-Asiatic insect and prefers warm climates. Therefore its continuous adult presence in parts of Iberia and N Africa may be due to some recent moderations of the climate in these areas. |
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Institute for Animal Health, Pirbright Laboratory, Woking, Surrey, UK |
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English |
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0928-4249 |
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Notes |
PMID:8102076 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2359 |
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Author |
Makarov, V.V.; Bakulov, I.A. |
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Title |
[Zoopathogenic arboviruses, their systematics and ecology] |
Type |
Journal Article |
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Year |
1975 |
Publication |
Veterinariia |
Abbreviated Journal |
Veterinariia |
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Volume |
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Issue |
11 |
Pages |
39-41 |
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Keywords |
Animals; Arboviruses/*classification/pathogenicity; Cattle; Deer; Ecology; Horses; Insect Vectors; Sheep; Swine; Turkeys; Viruses/*classification/pathogenicity |
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Russian |
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Original Title |
Zoopatogennye arbovirusy--sistematika i ekologiia |
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Edition |
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ISSN |
0042-4846 |
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Notes |
PMID:814685 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2703 |
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Author |
Wang, L.Y. |
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Title |
Host preference of mosquito vectors of Japanese encephalitis |
Type |
Journal Article |
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Year |
1975 |
Publication |
Zhonghua Minguo wei Sheng wu xue za zhi = Chinese Journal of Microbiology |
Abbreviated Journal |
Zhonghua Min Guo Wei Sheng Wu Xue Za Zhi |
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Volume |
8 |
Issue |
4 |
Pages |
274-279 |
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Keywords |
Animals; *Behavior, Animal; Birds/blood; *Culex; Ecology; Encephalitis, Japanese/*transmission; *Feeding Behavior; Female; Humans; *Insect Vectors; Mammals/blood; Species Specificity; Taiwan |
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Abstract |
The host preference of 4 Culex mosquito species collected in Miaoli and Pingtung counties, Taiwan was studied by capillary precipitin method. Antisera to alum-precipitated sera of man, bovine, swine, rabbit, horse, dog, cat, mouse, chicken, duck, and pigeon were produced in rabbits and reacted with 758 mosquito blood meals among which reactions to one or more antisera. Culex annulus and Culex tritaeniorhynchus summorosus showed a great avidity for pig, and Culex fuscocephala for bovine. Culex pipiens fatigans was ornithophilic. None of 110 C. t. summorosus and 2.4% of 223 C. annulus had fed on man. Among 66 samples of C.p. fatigans tested 10.3% had fed on man, while none of 359 C. fuscocephala did. It seems that the latter does not act as a primary vector of Japanese encephalitis. |
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English |
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0009-4587 |
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Notes |
PMID:181218 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2702 |
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