Observações preliminares sobre a transmissão de oncocercose no rio Toototobi, Amazonas, Brasil

Em dezembro de 1975 os autores estudaram vários fatores que influenciam a transmissão de Onchocerca volvulus ao norte do Amazonas, no rio Toototobi. Observaram que a densidade de microfilarias de O. volvulus era maior no tronco do que nos membros de dois índios Yanomama examinados. Foram capturados três espécies antropófilas de Simuliidae, provisoriamente denominados Simulium sp. A, S.sp. B e S.sp. C. A primeira espécie foi coletada em grande número no começo da tarde, atacando o homem. O encontro de larvas salsichóides em espécimes naturalmente infetados e o sucesso da infecção experimental de espécimes selvagens com microfilarias de O. volvulus que desenvolveram até o final do estágio salsichóide, sugerem que o provável vetor de oncocercose nesta área é o Simulium sp. A.Preliminary studies on various factors influencing the transmission of onchocerciasis were made in December 1975 on the river Toototobi in northern Amazonas. Microfilariae of O. volvulus were more abundant in the trunk than in the limbs of two Yanomama indian volunteers. Three anthrophilic species of Simuliidae were captured and have been temporarily nemaed as Simulium sp.A., sp.B., sp.C. until a definitive identification is made. Only the former species was abundant biting mainly in the early afternoon. The finding of sausage larva in a naturally infected fly and the successful experimental infection of wild flies with microfilariae of O. volvulus, which subsequently developed to the late sausage stage, suggest that Simulium sp.A is a probable vector of onchocerciasis in the area

Brachiaria brizantha cv. marandu.

Características agronômicas. Exigências e respostas a corretivos e fertilizantes. Produção de matéria seca. Valor nutritivo. Estabelecimento. Produção de sementes. Pragas. Desempenho animal.bitstream/item/104682/1/Brachiaria-brizantha.pd

Genotype x environment interaction, adaptability and stability of 'Piel de Sapo' melon hybrids through mixed models.

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Candidemia in Acute Leukemia Patients

Fungal infections are an important cause of morbidity and mortality in patients with acute leukemia (AL). Candidemia, once rare, is now a common nosocomial infection because of the intensity of chemotherapy, prolonged neutropenia, administration of broad-spectrum antibiotics and use of central venous catheters (CVC). We retrospectively identified patients treated for AL from 6/86 to 6/95 who also had candidemia. We describe 28 patients (incidence 6.3%) with a median age of 39 years, 24 of whom were on remission induction and 4 on postremission chemotherapy. All patients had CVC and empiric antimicrobial therapy, 4 had been given prophylactic antifungal drugs, and 2 had parenteral nutrition. Neutropenia was profound (median leukocyte nadir 200/microliters, median duration 19 days). Candida was isolated in blood cultures 10 days (median) after the start of neutropenia. The clinical presentation included fever (100%), respiratory symptoms (71.4%), skin lesions (39.2%) and septic shock (17.8%). Amphotericin B was given to 17 patients and liposomal amphotericin to 5 patients. Infection resolved in 18 patients (64.2%). 10 of whom were in complete remission. Mortality from candidemia was 17.8% (5/28). In conclusion, fungal infections are responsible for death in a significant number of patients. In our series treatment success was related to its rapid onset and to the recovery of neutropenia