Evidence for transmission of bluetongue virus serotype 26 through direct contact. 2014

Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
Non Vesicular Reference Laboratory, The Pirbright Institute, Woking, Surrey, United Kingdom.

The aim of this study was to assess the mechanisms of transmission of bluetongue virus serotype 26 (BTV-26) in goats. A previous study, which investigated the pathogenicity and infection kinetics of BTV-26 in goats, unexpectedly revealed that one control goat may have been infected through a direct contact transmission route. To investigate the transmission mechanisms of BTV-26 in more detail an experimental infection study was carried out in which three goats were infected with BTV-26, three goats were kept uninfected, but were housed in direct contact with the infected goats, and an additional four goats were kept in indirect contact separated from infected goats by metal gates. This barrier allowed the goats to have occasional face-to-face contact in the same airspace, but feeding, watering, sampling and environmental cleaning was carried out separately. The three experimentally infected goats did not show clinical signs of BTV, however high levels of viral RNA were detected and virus was isolated from their blood. At 21 dpi viral RNA was detected in, and virus was isolated from the blood of the three direct contact goats, which also seroconverted. The four indirect barrier contact goats remained uninfected throughout the duration of the experiment. In order to assess replication in a laboratory model species of Culicoides biting midge, more than 300 Culicoides sonorensis were fed a BTV-26 spiked blood meal and incubated for 7 days. The dissemination of BTV-26 in individual C. sonorensis was inferred from the quantity of virus RNA and indicated that none of the insects processed at day 7 possessed transmissible infections. This study shows that BTV-26 is easily transmitted through direct contact transmission between goats, and the strain does not seem to replicate in C. sonorensis midges using standard incubation conditions.

UI MeSH Term Description Entries
D007303 Insect Vectors Insects that transmit infective organisms from one host to another or from an inanimate reservoir to an animate host. Insect Vector,Vector, Insect,Vectors, Insect
D008954 Models, Biological Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment. Biological Model,Biological Models,Model, Biological,Models, Biologic,Biologic Model,Biologic Models,Model, Biologic
D001819 Bluetongue A reovirus infection, chiefly of sheep, characterized by a swollen blue tongue, catarrhal inflammation of upper respiratory and gastrointestinal tracts, and often by inflammation of sensitive laminae of the feet and coronet. Blue Tongue,Tongue, Blue
D001820 Bluetongue virus The type species of ORBIVIRUS causing a serious disease in sheep, especially lambs. It may also infect wild ruminants and other domestic animals. Ovine Catarrhal Fever Virus,Blue Tongue Virus,Blue Tongue Viruses,Bluetongue Viruses
D002519 Ceratopogonidae A family of biting midges, in the order DIPTERA. It includes the genus Culicoides which transmits filarial parasites pathogenic to man and other primates. Culicoides,Leptoconops,Midges, Biting,Biting Midge,Biting Midges,Culicoide,Leptoconop,Midge, Biting
D006041 Goats Any of numerous agile, hollow-horned RUMINANTS of the genus Capra, in the family Bovidae, closely related to the SHEEP. Capra,Capras,Goat
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012367 RNA, Viral Ribonucleic acid that makes up the genetic material of viruses. Viral RNA
D065288 Serogroup A set of variants within a species of microorganisms that are antigenically, closely related. With bacteria, a serogroup refers to a group that shares a common antigen. Serotype,Serovar,Serogroups,Serotypes,Serovars

Related Publications

Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
February 2013, Veterinary microbiology,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
August 2008, The Veterinary record,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
October 2013, Veterinary microbiology,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
July 2022, Veterinary medicine and science,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
July 2008, The Veterinary record,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
July 2009, Veterinary microbiology,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
June 2012, Virus genes,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
May 2012, Veterinary microbiology,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
May 2023, Biomolecules,
Carrie Batten, and Karin Darpel, and Mark Henstock, and Petra Fay, and Eva Veronesi, and Simon Gubbins, and Samantha Graves, and Lorraine Frost, and Christopher Oura
June 2019, Veterinaria italiana,
Copied contents to your clipboard!