Imunodiagnóstico da cisticercose em suíno experimentalmente infectado com ovos de Taenia solium, utilizando antígeno de escólex de Cysticercus cellulosae / Immunodiagnosis of cysticercosis in swine experimentally infected with Taenia solium eggs, using antigen of Cysticercus cellulosae scolex

Colheu-se sangue de sete suínos infectados com ovos de Taenia solium, semanalmente, durante 140 dias, para realizar ELISA no soro, utilizando antígeno de escólex (Es-Tso) de C. cellulosae. Em todos os animais, após o 21º dia pós-infecção, houve incremento significativo de anticorpos IgG, que assim se mantiveram até o final do experimento. A sensibilidade do ELISA variou entre 87,5 e 100 por cento. A necropsia, foram identificados 238 cisticercos. Seis suínos apresentaram pelo menos um cisto no coração, língua ou masseter. Não se observou correlação entre concentração de anticorpos e número de cisticercos identificados.

Blood samples from seven swines infected with eggs of Taenia solium, were collected weekly during a period of 140 days. The ELISA was carried out in serum, using antigen from Cysticercus cellulosae scolex (Es-Tso). The antibody levels for all animals significantly increased and maintained constant from the 21th day post-infection to the end of the experiment. The sensitivity of the ELISA test averaged between 87.5 percent and 100 percent. At the necropsy, 238 cysticerci were identified. Six swines presented at least one cysticercus in one of the organs: heart, tongue or masseter. No correlation between concentration of antibodies and number of identified cysticerci at necropsy, was observed.

Oocistos de Cryptosporidium spp nas fezes de bovinos em Montes Claros, Minas Gerais / Oocysts of Cryptosporidium spp in the feces of bovines, in Montes Claros, MG, Brazil

In January 1990, fecal samples from two dairy and five beef cattle farms located in Montes Claros, MG, Brazil were examined by using the centrifugation-flotation method in saturated sugar solution. Thirteen (27,1 per cent), of 48 two month-old calves were positive for oocysts of Cryptosporidium muris, found in one beef cattle and two dairy farms. Six (6,6 per cent) out of 91 cows were positive for C. parvum oocysts. This species of coccidium was observed in one dairy and two beef cattle farms. All cows were negative for C. muris

Localizaçäo do Dipetalonema reconditum (Grassi, 1890) (Nematoda filariidae) de Canis familiaris / Localization of Dipetalonema reconditum (Grassi, 1890) (Nematoda filariidae) de Canis familiaris

Foram necropsiados 24 cäes com exame de sangue positivo para microfilarias de Dipetalonema sp. Verificou-se que 93,9 por cento dos parasitos foram encontrados no tecido subcutâneo e 6,1 por cento nas vísceras. A localizaçäo dos helmintos variou com os regimes anatômicos, sendo o tórax o local de maior frequência