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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
26/05/2003 |
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Data da última atualização: |
25/08/2023 |
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Autoria: |
JENNINGS, D. M.; MELLOR, P. S. |
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Título: |
Variation in the responses of Culicoides variipennis (Diptera, Ceratopogonidae) to oral infection with bluetongue virus. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Archives of Virology, v. 95, n. 3/4, p. 177-182, 1987. |
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DOI: |
10.1007/BF01310778. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The infection rate of an established colony of Culicoides variipennis to oral infection with bluetongue virus (BTV) type 4 was found to be highly variable and ranged from O tA:> 51.6 per cent. This type of wide variation has previously only been reported to occur between individual populations of a species and not between samples from a single population. This must be taken into account when such colonies are used as reference standards for interpretation of field and laboratory data, particularly relating to studies of vector efficiency. Study of the response of individual susceptible C. variipennis to BTV infection demonstrated considerable variation in the level of virus multiplication that individual females are able to support. Virus concentrations varied from less than 1.1 to 5.Ilog1o TClD50/f1y up to 10 days post infection, 43.6 per cent of females contained less than 2.5 log10 TClD5o virus. It is suggested that such insects would have a mesenteron escape barrier to infection and would be incapable of transmitting BTV. The implications of these results for vector research are discussed. |
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Palavras-Chave: |
Infecção oral. |
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Thesagro: |
Doença Animal; Língua Azul; Vírus. |
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Thesaurus Nal: |
Bluetongue virus; Culicoides variipennis; DNA replication; Females; Pathogenicity; Reoviridae; Sheep diseases; Virus replication. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 01981naa a2200289 a 4500
001 1529328
005 2023-08-25
008 1987 bl uuuu u00u1 u #d
024 7 $a10.1007/BF01310778.$2DOI
100 1 $aJENNINGS, D. M.
245 $aVariation in the responses of Culicoides variipennis (Diptera, Ceratopogonidae) to oral infection with bluetongue virus.$h[electronic resource]
260 $c1987
520 $aAbstract: The infection rate of an established colony of Culicoides variipennis to oral infection with bluetongue virus (BTV) type 4 was found to be highly variable and ranged from O tA:> 51.6 per cent. This type of wide variation has previously only been reported to occur between individual populations of a species and not between samples from a single population. This must be taken into account when such colonies are used as reference standards for interpretation of field and laboratory data, particularly relating to studies of vector efficiency. Study of the response of individual susceptible C. variipennis to BTV infection demonstrated considerable variation in the level of virus multiplication that individual females are able to support. Virus concentrations varied from less than 1.1 to 5.Ilog1o TClD50/f1y up to 10 days post infection, 43.6 per cent of females contained less than 2.5 log10 TClD5o virus. It is suggested that such insects would have a mesenteron escape barrier to infection and would be incapable of transmitting BTV. The implications of these results for vector research are discussed.
650 $aBluetongue virus
650 $aCulicoides variipennis
650 $aDNA replication
650 $aFemales
650 $aPathogenicity
650 $aReoviridae
650 $aSheep diseases
650 $aVirus replication
650 $aDoença Animal
650 $aLíngua Azul
650 $aVírus
653 $aInfecção oral
700 1 $aMELLOR, P. S.
773 $tArchives of Virology$gv. 95, n. 3/4, p. 177-182, 1987.
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Embrapa Caprinos e Ovinos (CNPC) |
