Peer-reviewed veterinary case report
High genetic diversity of Anaplasma marginale detected from Philippine cattle.
- Journal:
- The Journal of veterinary medical science
- Year:
- 2014
- Authors:
- Ybañez, Adrian Patalinghug et al.
- Affiliation:
- Department of Clinical Veterinary Sciences · Japan
Abstract
A total of 658 cattle in 6 provinces in the Philippines were screened for Anaplasma marginale infection by using a diagnostic heat-shock operon (groEL) gene-PCR assay. The screening-positive samples were further tested using the major surface antigen protein 1a (Msp1a) gene-PCR assay. Screening PCR results showed 130 cattle (19.8%) were positive for the A. marginale infection. Subsequent amplification using the Msp1a gene only showed 93 samples (14.1%) to be positive. In addition, 37 tandem-repeat structures, including 20 novel structures, and 41 distinct genotypes were identified. Interestingly, multiple infections of 4 different genotypes were also observed in A. marginale-infected cattle. The present study demonstrated the prevalence and characterization of diverse genotypes of A. marginale in the Philippine cattle.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/24717413/