An investigation on the ecology of Triatoma vitticeps (Stal, 1859) and its possible role in the transmission of Trypanosoma cruzi, in the locality of Triunfo, Santa Maria Madalena municipal district, State of Rio de Janeiro, Brazil

From January 1989 to April 1995, 465 specimens of Triatoma vitticeps were collected in the locality of Triunfo, 2nd District of Santa Maria Madalena municipal district, State of Rio de Janeiro. The bugs were found indoors by local residents with predominance of adults. The flight activity was high in hot months when the incidence in the domicile also increased. Two hundred and two bugs (111 alive and 91 dead) were examined for Trypanosoma cruzi infection. This was detected in 31 of the dead bugs (34 per cent) and 88 (79 per cent) of the live bugs examined. With a view to investigate the possible vertebrate hosts of the T. cruzi isolates, the blood of 122 mammnals was examined through Giemsa-stained smear, hemocultures and xenodiagnosis. T. cruzi was detected in three specimens of Didelphis marsupialis and T. (M.) theileri was detected in one specimen of Bos taurus. The parasites were isolated from triatomine feces, xenoculture and hemoculture. No evidence of human infection was detected in 58 inhabitants examined, as evaluated by indirect imunofluorescence technique using T. cruzi epimastigotes as antigens. These results show that T. vitticeps is still a sylvatic species although nymphs have found inside the domicile. Thus, an epidemiological vigilance is necessary to know the behaviour of this species following the continous modifications promoted by the presence of man.

Alguns aspectos da biologia de Triatoma pseudomaculata Correa & Espinola, 1964, em condicoes de laboratorio (Hemiptera: Reduviidae: Triatominae) / Biology of Triatoma pseudomaculata Correa & Espinola, 1964, under laboratory conditions (Hemiptera: Reduviidae: Triatominae)

Observations were made on the evolutive cycle of Triatoma pseudomaculata, held under laboratory conditions, fed weekly on bird (pigeon). Of 60 eggs obtained, only 34 nymphs reached the adult stage in a period of X(S)=398ñ76 days. The following parameters were observed: the time immature stages took to develop from egg to adult emergence; the occurence of the first meal; the time-lapse between the presenting of the blood-meal and the begining of feeding; time of feeding; amount of blood ingested; variation of weight 24 hr after the blood-meal and unit the next blood-meal; and the defecation pattern. The experimental was carried out for 20 months, held in BOD incubator with the average of temperature and humidity of 28ñ1ºC and 80ñ5 per cent RU, respectively.

Terapia sexual de disfunçäo erétil: experiências profissionais em hospital previdenciário / Sexual therapy of erectile dysfunction: professionals experience in public hospital

No atendimento psicológico para tratamento da disfunçäo erétil em hospital previdenciário em contexto multidisciplinar, o psicólogo necessita algumas modificaçöes para as quais näo teve formaçäo acadêmica adequada. Os autores apontam e discutem vários pontos necessários ao psicólogo estagiário: preparo teórico sobre disfunçöes sexuais: diagnóstico e tratamento; entrosamento na rotina hospitalar; adaptaçäo ao e do ambiente físico ao atendimento psicológico - salas; o contrato terapêutico; os atendimentos em terapia sexual junto ao paciente previdenciário: adaptaçöes à realidade social. Säo apresentados exemplos demonstrativos do processo do desenvolvimento profissional e de adequaçäo à realidade do hospital previdenciário em especial o esquema multidisciplinar