Development of Leishmania (Viannia) braziliensis Vianna, 1911 in Lutzomyia intermedia (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae) under experimental conditions

The development of Leishmania (Viannia) braziliensis in experimentally infected Lutzomyia intermedia, showed colonization of the hindgut from 48h after the infective blood-meal, and the migration flagellates to the foregut, with a massive infection of the cardia at the 5th day post infection. Up to 10 days following the infective blood-meal, very few parasites were seen in the pharynx and cibarium. The role of L. intermedia as a vector of cutaneous leishmaniasis is discussed according to the estabilished criteria

Studies on sandfly fauna (Diptera: Psychodidae) in a foci of cutaneous leishmaniasis in Mesquita, Rio de Janeiro State, Brazil

Lutzomyia intermedia was the predominant species. It was collected indoors but in much higher numbers outdoors, in the close vicinity of houses. In comparative captures it was found to feed more frequently on equines, and less frequently on man and dogs. Studies, using man and animals as baits, showed that blood-feeding started in the evening, and remained stable during the night, until early morning. June, August and October were the months of highest density

Flebótomos de Vargem Grande, foco de leishmaniose tegumentar no Estado do Rio de Janeiro / Phlebotomus of Vargem Grande, focus of tegumentary leishmaniasis in the State of Rio de Janeiro

Realizamos durante um ano completo coletas sistemáticas de flebótomos em Vargem Grande, onde recentemente encontráramos Lutzomyia intermedia naturalmente infectada por Leishmania braziliensis. Capturamos flebótomos pertencentes a doze espécies. Tanto dentro de casa quanto no peridomicílio, as capturas em isca humana e com armadilha luminosa, revelaram a grande predominância de L. intermedia seguida de L. migonei. Na plantaçäo predominou L. migonei. Nas coletas simultâneas em homem e cäo, L. intermedia foi mais freqüente no primeiro e L. migonei no segundo

Ileo biliar. / Biliary ileus

Os autores fizeram a revisao de oito pacientes portadores de ileo biliar. Esta e uma patologia pouco frequente. O quadro clinico nao e caracteristico e a omissao do estudo radiologico torna praticamente inviavel o diagnostico pre-operatorio. O tratamento cirurgico e relativamente simples, nao havendo como regra geral ser postergado a pretexto de evitar uma reintervencao eletiva, pois alem de nada trazer de beneficio a resolucao do quadro agudo, ainda aumenta a mortalidade. O ileo biliar, portanto, deve sempre ser lembrado pelos clinicos e cirurgioes entre as causas de obstrucao intestinal