Bovine papillomavirus type 2 in enzootic haematuria aetiology
DOI:
https://doi.org/10.5433/1679-0359.2002v23n1p121Keywords:
Bovine, Enzootic Haematuria, Bovine Papillomavirus Type 2, Bracken Fern.Abstract
Bovine enzootic haematuria (EH) occurs worldwide and is endemic in regions with bracken fern (Pteridium aquilinum) infested grassland. EH is chronic disease that is characterized by clinical signs of intermitent haematuria, anemia and progressive emaciation and haemorragic, hyperplasic and neoplasic lesions of urinary bladder. Although bracken fern intoxication has been related to EH, most recent bovine papillomavirus type 2 (BPV-2) infection has been also assessed. Some researches has shown that the presence of BPV-2 in association with bracken fern carcinogenic compound leads to the malignant progression of urinary bladder lesions that cause the clinical signs of EH. In this review the major evidence of BPV-2 involviment in the aetiology of EH is presented along with diagnostic methods and prophylaxis of this disease that causes considerable economic losses in brazilian cattle breeding.
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