Diagnóstico laboratorial da infecção por Leptospira ssp. em animais silvestres e em roedores procedentes do Centro de Conservação da Fauna silvestre de Ilha Solteira-SP

• Ano de defesa: 2013
• Autor(a) principal: Paixão, Mirian dos Santos [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Roedor - Doenças; Reação em cadeia de polimerase; Leptospira; Rodents Diseases
• Link de acesso: http://hdl.handle.net/11449/108548

Leptospirosis is a disease caused by various strains of the spirochete bacterium Leptospira interrogans, which can infect domestic and wildlife animals, as well humans. Wild animals may play a key role in the epidemiology of the disease, due to the large spread of leptospires into the environment and the possibility of infection between animals and man, becoming therefore an important zoonosis. When these animals live in captivity in zoos, the infection and spread of pathogens can occur between the wild animals of the zoo itself, synanthropic animals, employees and visitors. In order to better understand the occurrence and epidemiology of leptospirosis in wild animals and in synanthropic rodents, which co-inhabit the place, a study was conducted with free-living animals and in captivity, found in Wild Fauna Conservation Center from Ilha Solteira-SP. Blood samples were collected from 41 animals in captivity and 59 free-living animals, as well as 13 samples of kidney and liver of rats. The diagnostic techniques used were the Microscopic Agglutination Test (MAT), the Polymerase Chain Reaction (PCR) and cultivation in Fletcher medium. MAT was positive in 89 (89%) samples for one or more serovars of Leptospira spp., with prevalence of serovar Andamana. For the research of agent into fragments of liver and kidney of rodents, 13 samples of each fragment were grown in Fletcher medium, with seven (53,8%) positive samples (three kidney samples and four liver samples). All rats were reactive by MAT. Related to PCR from the blood of free-living animals and in captivity, 38 animals (38%) were positive for Leptospira spp.; nine rodents (69,2%) presented positive fragments at PCR and four animals (30,8%) presented positive samples of the culture of the fragments at PCR for Leptospira spp. According to the results, we observed the occurrence of infection among the animals, needing the adoption of prophylactic measures to control this zoonosis in this place