ArticleFrontiers in veterinary science2022
Diagnosis and phylogenetic analysis of bovine leukemia virus in dairy cattle in northeastern Brazil.
Article in Frontiers in veterinary science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 5 citations in OpenAlex.
- "Expression of a recombinant chimeric capsid-nucleocapsid protein from bovine leukemia virus genotype 1 for the diagnosis of enzootic bovine leukosis".Veterinary research communications · 2026Article
- Endemic Persistence of Bovine Leukemia Virus in aHigh-Producing Brazilian Dairy Herd: Seroprevalence Across Production Strata, Vertical Transmission, and Mortality Risk.Veterinary medicine international · 2026Article
- Integrated BLV surveillance in Kazakhstan, 2025: diagnostic complementarity and risk zoning.Frontiers in veterinary science · 2026Article
- Development and application of a quantitative polymerase chain reaction assay for the detection and genotyping of bovine leukemia virus in cattle from Kazakhstan.Veterinary world · 2025Article
- Article
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Enzootic bovine leukosis (EBL) is a chronic viral disease of wide distribution in cattle herds and may take several years for the first manifestation of clinical signs. Most animals do not present clinical signs. However, the economic losses are underestimated due to this disease. Thus, this work aimed to detect and characterize BLV in dairy cattle in the Maranhão state, northeastern Brazil. Blood samples were collected from 176 animals from 8 municipalities in the southeastern state of Maranhão. Bovine blood samples were subjected to DNA extraction and molecular diagnosis using nested PCR assays for BLV, targeting gp51 gene. Positive samples were then sequenced and then subjected to phylogenetic inferences. BLV DNA was detected in 16 cattle (16/176, 9.09%) in 4 municipalities. Phylogenetic analyzes showed that the sequence obtained clustered in a clade containing BLV sequences classified as genotype 6, with a high degree of support. Our data shows BLV occurrence in the Northeast of Brazil and the identification of genotype 6 in this region. These findings contribute to the molecular epidemiology of this agent in Brazil.
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