Antibody to bluetongue virus in cattle in Ecuador

López, Will A.; Nicoletti, P; Gibbs, E. P. J.

doi:10.1007/bf02360776

Cited by 13 publications

(11 citation statements)

References 2 publications

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“…In the north and north-west of South America (Ecuador, Colombia, Venezuela, Trinidad and Tobago, Guyana, Suriname and French Guyana), the weather conditions are, in general terms, suitable for the development of the vector species and thus for BTV spreading through invertebrate hosts (Homan et al, 1985a;Lopez et al, 1985). In addition, Culicoides density is higher than in arid areas such as Chile, Peru, Bolivia and northwest of Argentina.…”

Section: Btv In South Americamentioning

confidence: 99%

“…In Ecuador, Lopez et al described the serologic presence of BTV in 9 out of 87 bovines (10.3% seroprevalence) in El Oro province, in the south of the country (Lopez et al, 1985). In Manabi, in the west of Ecuador, Mantilla et al showed the presence of antibodies against BTV in caprines with a seroprevalence of 7.4% (Mantilla, 1998).…”

Section: Btv In South Americamentioning

confidence: 99%

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Bluetongue virus in South America, Central America and the Caribbean

Legisa¹,

Gonzalez²,

Santos³

2014

Virus Research

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Section: Btv In South Americamentioning

confidence: 99%

Section: Btv In South Americamentioning

confidence: 99%

Bluetongue virus in South America, Central America and the Caribbean

Legisa¹,

Gonzalez²,

Santos³

2014

Virus Research

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“…However, in South America, information regarding detection of BTV is limited to very few reports. Serological evidence for the presence of BTV has been reported in Peru (Rosadio et al , 1984), Argentina (Puntel et al , 1999), Brazil (Brown et al , 1989; Castro et al , 1992; Lage et al , 1996), Ecuador (Lopez et al , 1985) and Chile (Tamayo et al , 1985). Using serological techniques, the serotypes probably present in South America are: 4, 6, 14, 17, 19 and 20 in Brazil (Groocock & Campbell, 1982); 12, 14 and 17 in Colombia (Homan et al , 1985); 14 and 17 in Guyana; and 6, 14 and 17 in Suriname (Gumm et al , 1984).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic analysis of bluetongue virus serotype 4 field isolates from Argentina

Legisa¹,

Gonzalez²,

Stefano³

et al. 2013

Journal of General Virology

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Bluetongue is an insect-transmitted viral disease of ruminant species, which represents a major barrier to the international trade of animals and their products. Bluetongue virus (BTV) has a genome composed of ten linear segments of dsRNA, which code for at least ten different viral proteins. In South America, serological evidence for the presence of BTV has been found in Peru, Argentina, Brazil, Ecuador and Chile. Brazil and Argentina are the only South American countries where BTV has been isolated. In Brazil, only one BTV isolate, serotype 12, has been reported, whereas in Argentina five BTV serotype 4 isolates have been obtained from cattle without clinical signs. Three of these five isolates were isolated during 1999-2001, whereas two of them were obtained as part of the present work. This study describes sequence comparisons and phylogenetic analyses of segment (Seg)-2, Seg-3, Seg-6, Seg-7 and Seg-10 of the first Argentinian field isolates of BTV. The analysis of Seg-2 and Seg-6 resulted in a single cluster of Argentinian sequences into the serotype 4 clade. In addition, the Argentinian sequences grouped within the nucleotype A clade, along with reference strains. The analysis of Seg-3, Seg-7 and Seg-10 showed that the Argentinian isolates grouped into the western topotype, indicating that the circulating virus had an African/European origin. Phylogenetic analysis revealed that the Argentinian sequences present a South American genetic identity, suggesting an independent lineage evolution. The GenBank/EMBL/DDBJ accession numbers for the Seg-2, Seg-3, Seg-6, Seg-7 and Seg-10 sequences of Argentinian BTV isolates are: JX024940-JX024964.

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“…In 1943In -1944 bluetongue was found in Israel (Shimshony, 2004), in 1948 it was reported in Texas, USA (Hardy and Price, 1952), between 1956 and 1957 a large epidemic broke out on the Iberian peninsula, and subsequently bluetongue was also found in the Middle East, Asia and Southern European countries (Gibbs and Greiner, 1994;Mellor and Wittmann, 2002;MacLachlan, 2004). In Australia it first appeared in 1977 (Gibbs and Greiner, 1994), and in South America it was found in the 1980s (Rosadio et al, 1984;Lopez et al, 1985;Tamayo et al, 1985;Clavijo et al, 2002). Bluetongue is also present in Central America and Mexico, Papua New Guinea, Thailand, China, Japan, the Indian subcontinent, Mediterranean countries (Greece, Spain, Italy, Corsica), Portugal, Bulgaria and other countries (Baylis and Mellor, 2001;Mellor and Wittmann, 2002;Tweedle and Mellor, 2002;Anonymous, 2007;Mehlhorn et al, 2007;Mellor et al, 2008).…”

Section: History and Distributionmentioning

confidence: 99%

Bluetongue: a review

Šperlová¹,

Zendulková²

2011

Vet. Med.

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 Bluetongue is a non-contagious disease of domestic and wild ruminants caused by a virus within the Orbivirus genus of the family Reoviridae and transmitted by Culicoides biting midges. It is a reportable disease of considerable socioeconomic concern and of major importance for the international trade of animals and animal products. In the past, bluetongue endemic areas were found between latitudes 40°N and 35°S; however, bluetongue has recently spread far beyond this traditional range. This is in accordance with the extension of areas in which the biting midge Culicoides imicola, the major vector of the virus in the “Old World”, is active. After 1998 new serotypes of bluetongue virus (BTV) were discovered in Southern European and Mediterranean countries. Since 2006 BTV-serotype 8 has also been reported from the countries in Northern and Western Europe where Culicoides imicola has not been found. In such cases, BTV is transmitted by Palearctic biting midges, such as C. obsoletus or C. dewulfi, and the disease has thus spread much further north than BTV has ever previously been detected. New BTV serotypes have recently been identified also in Israel, Australia and the USA. This review presents comprehensive information on this dangerous disease including its history, spread, routes of transmission and host range, as well as the causative agent and pathogenesis and diagnosis of the disease. It also deals with relevant preventive and control measures to be implemented in areas with bluetongue outbreaks.  

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Antibody to bluetongue virus in cattle in Ecuador

Cited by 13 publications

References 2 publications

Bluetongue virus in South America, Central America and the Caribbean

Bluetongue virus in South America, Central America and the Caribbean

Phylogenetic analysis of bluetongue virus serotype 4 field isolates from Argentina

Bluetongue: a review

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