Danielle Porcari Alves

Distribution and factors associated with Fasciola hepatica infection in cattle in the south of Espírito Santo State, Brazil

Fasciolosis is a disease that affects the liver parenchyma and bile ducts of numerous animals, including humans, which causes economic losses and threatens public health. The present work aimed at reporting the distribution and factors connected with Fasciola hepatica infection in cattle in ten municipalities in southern Espirito Santo, Brazil, between 2008 and 2009. During this period, 50 rural properties in ten cities were analyzed and fecal samples from 10% of the cattle on each farm were collected. Of the 717 samples analyzed, 154 (21.33%) presented Fasciola hepatica eggs. As for the 50 rural properties studied, 32 (64%) had animals positive for fasciolosis. Throughout the evaluation, it was observed that 42 (84%) rural properties had flooded areas, 33 (66%) were located at altitudes less than 226 meters, in 36 (72%) mollusks were found, 47 (94%) had other definitive hosts (horses, sheep, goats) and 25 (50%) had previous cases of bovine fasciolosis. The present results showed a high rate of bovine fasciolosis in the analyzed region whereas infected animals are present in all the municipalities. Based on statistical analysis, it was concluded that there was an association between the presence of flooded areas and other definitive hosts in rural properties where bovine fasciolosis was detected.

Fasciola hepatica em ovinos, caprinos e bubalinos em municípios do sul do Espírito Santo

O objetivo deste trabalho foi registrar a presenca de Fasciola hepatica em ovinos, caprinos e bubalinos em dez municipios do sul do Espirito Santo e relacionar fatores determinantes da doenca na regiao. Um total de 34 propriedades de ovinos, caprinos e bubalinos foi visitado coletando-se amostras fecais dessas especies para procedimento da tecnica de sedimentacao. Um total de 58 (13,68%) amostras de ovinos, 76 (21,78%) amostras de caprinos e 10 (23,81%) amostras de bubalinos foram positivas para ovos de F. hepatica. Todos os moluscos coletados foram identificados como pertencentes a especie Lymnaea columella. Notou-se que os municipios da regiao sul do Espirito Santo apresentam altas taxas de F. hepatica em ovinos, caprinos e bubalinos, tornando essa regiao um grande foco de dispersao da parasitose, e que a ocorrencia de casos anteriores de fasciolose nas propriedades ficou caracterizada como fator de risco epidemiologico para a doenca.