Transmission of bovine virus diarrhoea virus by blood feeding flies

Tarry, DW; Bernal, Luis J.; Edwards, S.

doi:10.1136/vr.128.4.82

Cited by 43 publications

(24 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These properties have on occasion been suggested to represent a vestigial trait found in mosquitoborne flaviviruses as a result of a past association with ticks [18]. Second, the majority of the other members of the Flaviviridae, namely the pestiviruses and the hepaciviruses, are not associated with vector-borne transmission, although there are some very limited examples of laboratory transmission of bovine viral diarrhea virus by bloodfeeding flies [37] and equivocal evidence for transmission of hepatitis C virus by ticks [39]. Therefore, based on current evidence, it is most parsimonious to assume that the absence of a vector is the ancestral condition for this family of viruses.…”

Section: Discussionmentioning

confidence: 99%

A multigene analysis of the phylogenetic relationships among the flaviviruses (Family: Flaviviridae) and the evolution of vector transmission

2005

View full text Add to dashboard Cite

Summary. The genus Flavivirus (family Flaviviridae) presently comprises around 70 single-strand positive-sense RNA viruses. These replicate in a range of vertebrate and invertebrate cells and may be mosquito-borne, tick-borne or have no-known-vector. Since transmission mode correlates strongly with phylogeny, the flaviviruses constitute a valuable model for the evolution of vectorborne disease. Attempts to resolve the higher-level taxonomic relationships of the flaviviruses through molecular phylogenetics have thus far proved inconclusive because of conflicting positions for the three main transmission groups. We conducted the most comprehensive phylogenetic study to date, involving maximum likelihood analyses of the NS3 and NS5 genes and the entire genome sequences available at present. For the first time, we use and test a variety of more robust methods of sequence alignment and appropriate models of amino acid replacement to study these highly divergent sequences, and explicitly test specific hypotheses of tree topology. We show that (i) the NS5 gene contains insufficient phylogenetic signal to choose between competing topological hypotheses, (ii) the NS3 gene and whole genome data indicate that the mosquito-borne flaviviruses represent an outgroup to the remaining flaviviruses, and (iii) that tick-borne transmission is probably a derived trait within the genus.

show abstract

Section: Discussionmentioning

confidence: 99%

A multigene analysis of the phylogenetic relationships among the flaviviruses (Family: Flaviviridae) and the evolution of vector transmission

2005

View full text Add to dashboard Cite

show abstract

“…For example, T. taeniola, one of the species encountered was found capable of harbouring presumptive T. congolense Broden infections in Burkina Faso (Solano & AmslerDelafosse, 1995). Both S. calcitrans and Haematopota pluvialis Linnaeus have been shown to transmit the virus causing bovine leucosis (Boulet, 1989), bovine diarrhoea (Tarry et al, 1991) and Streptothricosis (Hadrill et al, (1991) in livestock. S. calcitrans has also been implicated in the transmission of conjunctival habronemiasis (Rebhum, 1996).…”

Section: Discussionmentioning

confidence: 99%

Species diversity, abundance and seasonal occurrence of some biting flies in Southern Kaduna, Nigeria

Ahmed¹,

Sn²,

Samdi³

2006

African Journal of Biomedical Research

View full text Add to dashboard Cite

A survey of biting dipterans was conducted in Kaura LGA of Kaduna State between November 2000 and October 2001. Fifteen species of biting flies were caught in two families, Tabanidae and Muscidae distributed in the following 4 genera: Tabanus 10, Haematopota 2, Chrysops 1 and Stomoxys 2. The genus Stomoxys represented by Stomoxys calcitrans Linnaeus and S. nigra Macquart had the highest abundance (62.5%), followed by the Tabanus (34.6%), Haematopota (1.8%) and Chrysops (1.1%). Generally, more flies were collected during the wet (1431 ; 85.1%) than the dry season (250; 14.9%) with some species occurring all year round. The widespread presence of haematophagous dipterans in the study area suggest that they could be playing a greater role in disease transmissions than previously thought. O ptimum temperatures that stimulate rapid reproduction appear to fall between mean temperatures of 22.8-24.1 o C. The species showed a general increase in relative abundance during the wet season and a decline in the dry season. No new country record was found.

show abstract

“…Hog cholera (HC) virus infections are confined to swine, and bovine virus diarrhea (BVD) virus infections occur in cattle, swine, sheep and deer. BVD virus causes border disease in sheep (Tarry et al 1991).…”

Section: Arbovirusesmentioning

confidence: 99%

“…Iatrogenic transmission by needles and nose tongs has been demonstrated (Gunn 1993). However, Tarry et al (1991) demonstrated mechanical transmission from a donor bullock with approximately 1()4.5 TCID so per m1 of serum by the interrupted feeding of both stable flies and tabanids (Haematopota pluvialis) in groups of 50 transferred to calves or sheep. The bullock was a persistently infected, asymptomatic animal.…”

Section: Arbovirusesmentioning

confidence: 99%