To determine the presence of Brucella ovis in ovine from Paraíba State, in the Northeast region of Brazil, 80 animals slaughtered in the public slaughterhouse of Patos city were used. Before slaughter, blood samples were collected by jugular venopuncture from each animal, and after slaughter, testicles, epidydimus and uterus were aseptically collected. For the serological diagnosis of B. ovis and B. abortus infections, the agar gel immunodiffusion (AGID) and Rose Bengal (RBT) tests were carried out, respectively. In addition, microbiological culture and polymerase chain reaction (PCR) were performed on testicle, epidydimus and uterus samples. Six animals (7.5%) tested positive for the presence of B. ovis antibodies and all animals tested negative for the presence of B. abortus antibodies. One AGID-positive animal tested positive at uterine swab culture. PCR was able to amplify DNA of Brucella spp. from the pool of testicle, epidydimus and uterus samples from AGID-positive animals. This is the first report of isolation and detection of B. ovis DNA by PCR in ovine from the Northeast region of Brazil.
Three of six captive South American coatis (Nasua nasua) presented with respiratory distress and died despite treatment. Postmortem examination performed on two of these animals revealed granulomatous pleuropneumonia associated with acid-fast bacilli. Because of the possible diagnosis of mycobacterial infection, the three remaining asymptomatic coatis were anesthetized. Tracheal washes were sampled and submitted for microbiology, and the animals were euthanatized and postmortem examinations performed. One of these asymptomatic adult males had whitish granulomas in multiple organs and tissues. Additionally, the isolate from this male's tracheal wash was identified as Mycobacterium kansasii by molecular analysis. To the authors' knowledge, this is the first report of M. kansasii infection in Nasua nasua.
An adult female red-faced black spider monkey (Ateles paniscus), housed for 2 years in the Parque Estoril Zoo in São Paulo, Brazil, showed apathy. Clinical examination revealed discrete emaciation, swelling and induration of lymph nodes, and presence of a mass in the abdominal cavity. Therapies with enrofloxacin, azithromycin, and ceftiofur were ineffective. The animal died after 6 months. Necropsy and histopathology confirmed granulommas in lymph nodes, parietal and visceral pleura, lungs, liver, spleen, and kidneys. Acid-fast bacilli were isolated and identified as Mycobacterium tuberculosis by polymerase chain reaction restriction analysis and Spoligotyping techniques. The zoo personnel and other animals that had had contact with the infected primate were negative to tuberculosis diagnostic procedures, such as sputum exam (baciloscopy) and thorax radiography. It was impossible to determine whether the infection occurred before or after the arrival of the animal to the Parque Estoril Zoo. This is the first report of M. tuberculosis infection in Ateles paniscus, a neotropical primate.
ABSTRACT:The aim of this work was to isolate and characterize microorganisms in hypertrophied lymph nodes or gross lesions suggestive of tuberculosis collected from 12 goats and 28 sheep slaughtered at the public slaughterhouse of Patos municipality, Paraíba State, in the Northeast region of Brazil. The identification of mycobacteria was performed by the PRA method (PCR-Restriction Enzyme Analysis). Histopathological examination of lesions was also performed. Organs affected were liver, lung, mammary gland, bladder and mediastinal, mesenteric, submandibular, parotid, popliteal, precrural, prescapular and superficial inguinal lymph nodes. Histopathological examination showed the presence of granulomas in 8 (20.00%) animals. Of the 12 goats, 1 (8.33%) was positive in the culture of mycobacteria, and by PRA method the isolate was classified as belonging to the M. tuberculosis complex. Two (7.14%) sheep were positive for the presence of environmental mycobacteria. There was isolation of Corynebacterium pseudotuberculosis in 8 (66.66%) goats and 17 (60.71%) sheep, and simultaneous isolation of mycobacteria and C. pseudotuberculosis in 1 (8.33%) goat and 1 (3.57%) sheep. The isolation of mycobacteria of the M. tuberculosis complex in goats in this study raises concerns of public health, as professionals involved in handling these animals and the meat and milk consumers are exposed to the risk of infection. KEYWORDS: mycobacteriosis; Mycobacterium tuberculosiscomplex; small ruminants; laboratorial procedure. RESUMO:O objetivo do presente trabalho foi isolar e tipificar micro-organismos presentes em linfonodos hipertrofiados ou lesões macroscópicas sugestivas de tuberculose colhidos de 12 caprinos e 28 ovinos abatidos no matadouro público do município de Patos, Paraíba. A identificação de micobactérias foi feita com o método PRA (PCR-Restriction Enzyme Analysis). Também foi realizado o exame histopatológico das lesões. Os órgãos afetados foram fíga-do, pulmão, glândula mamária, bexiga e linfonodos mediastínicos, mesentéricos, submandibulares, parotídeos, poplíteos, pré-crural, pré-escapular e inguinal superficial. O exame histopatológico apontou a presença de granulomas em 8 (20,00%) animais. Dos 12 caprinos, 1 (8,33%) foi positivo no cultivo de micobactérias, e pelo mé-todo PRA o isolado foi classificado como pertencente ao complexo M. tuberculosis. Dois (7,14%) ovinos foram positivos para a presença de micobactérias ambientais. Houve isolamento de Corynebacterium pseudotuberculosis em 8 (66,66%) caprinos e em 17 (60,71%) ovinos, e isolamento simultâneo de micobactérias e C. pseudotuberculosis em 1 (8,33%) caprino e 1 (3,57%) ovino. O isolamento de micobactéria do complexo M. tuberculosis em caprinos no presente trabalho levanta preocupações do ponto de vista de saúde pública, uma vez que profissionais envolvidos na manipulação destes animais, bem como a população consumidora de carne e leite, estão expostos ao risco de infecção.
712Pesq. Vet. Bras. 30(9):712-716, setembro 2010 RESUMO.-O objetivo do presente trabalho foi determinar a frequência de propriedades positivas (focos) e de animais positivos para a tuberculose bovina no Estado da Paraíba. Foram utilizados dados da Agência de Defesa Agropecuá-ria do Estado, coletados de suas 23 microrregiões, durante o período de janeiro de 2008 a julho de 2009. Durante esse período, foram examinadas 10.963 propriedades e 54.472 bovinos foram submetidos ao teste de tuberculinização. Para o diagnóstico foi utilizada, como prova de triagem, a tuberculinização cervical simples para gado de leite e a tuberculinização na prega caudal para gado de corte; como prova confirmatória foi utilizada a tuberculinização cervical comparativa. Uma propriedade foi considerada foco quando apresentou pelo menos um animal soropositivo. Das propriedades investigadas, 62 (0,57%) apresentaram pelo menos um animal positivo e dos animais analisados, 136 (0,25%) foram positivos. Houve diferença significativa (p<0,001) na proporção de fêmeas (0,32%) e machos (0,04%) positivos. A despeito da baixa freqüência de focos de brucelose e de animais soropositivos, é necessária a condução de medidas que incluem a conscientização dos produtores, fiscalização nas barreiras sanitárias e levantamentos periódicos da situação epidemiológica desta doença, principalmente nas microrregiões com maior frequência da infecção, com o objetivo de evitar, ou pelo menos minimizar, a disseminação do agente. The aim of this study was to determine the frequency of positive herds (foci) and positive animals for bovine tuberculosis in the state of Paraíba, Northeast region of Brazil. Data from the Agency of Agricultural Protection in the state, collected from its 23 microregions, during the January 2008 to July 2009 period, were used. During this period, 10,963 herds were examined and 54,472 cattle were submitted to the tuberculin test. For diagnosis the cervical and caudalfold tuberculin tests were used as screening tests in dairy and beef cattle, respectively; as confirmatory test, comparative cervical test was used. A herd was considered focus when presented at least one positive animal. Of the herds investigated, 62 (0.57%) had at least one positive animal, and of the animals examined, 136 (0.25%) were positive. There was significant difference (p<0.001) in the proportion of positivity for females (0.32%) and males (0.04%). Despite low frequency of foci of brucellosis and seropositive animals, it is necessary to conduct measures including awareness of producers, surveillance in sanitary barriers and periodic surveys of epidemiological situation of this disease especially in the regions with highest frequency of infection, aiming to avoid, or at least minimize, the spread of the agent.INDEX TERMS: Mycobacterium bovis, frequency, microregions, epidemiology.
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