Surto de tuberculose em suínos de criação intensiva no Sul do Brasil

portuguesMycobacterium bovis e o agente etiologico da tuberculose animal (aTB), uma doenca zoonotica negligenciada. A tuberculose animal pode afetar muitas especies, incluindo suinos. Os granulomas compativeis com a aTB nesses animais levam ao descarte de carcacas, gerando perdas economicas e trazendo riscos a saude humana. No presente estudo, um surto de aTB foi identificado em um sistema de criacao intensiva de suinos na regiao Sul do Brasil. A inspecao durante um abate de suinos revelou lesoes suspeitas de tuberculose, as quais foram coletadas para diagnostico por histologia, PCR e isolamento bacteriano. Os animais nao apresentavam sinais clinicos de tuberculose. Lesoes granulomatosas foram identificadas em 0,73% (59/8.071) dos suinos abatidos, e foram confirmadas pela histologia. Nove amostras foram posteriormente examinadas por PCR e isolamento bacteriano, com 44,4% e 55,5% de resultados positivos, respectivamente. Dados de frigorificos submetidos a vigilância federal demostram prevalencia da aTB de EnglishMycobacterium tuberculosis var. bovis is the etiologic agent of animal tuberculosis (aTB), a neglected zoonotic disease. Animal tuberculosis can affect many species, including swine. aTB-consistent granulomas in these animals lead to carcass disposal, generating economic losses and posing risks to human health. In the present study, an aTB outbreak was identified at an intensive swine farming operation in Southern Brazil. Inspection during swine slaughter revealed aTB-suspected lesions, which were collected for diagnosis by histology, PCR, and bacterial isolation. The animals had no clinical signs of tuberculosis. Granulomatous lesions were identified in 0.73% (59/8,071) of the slaughtered swine, and were confirmed by histology. Nine samples were further examined by PCR and bacterial isolation, with 44.4% and 55.5% positive results, respectively. Data from abattoirs subjected to federal surveillance show an aTB prevalence in Brazil of