[the epidemiological determinant aspects in the maintenance of visceral leishmaniasis in the state of maranhão, brazil].the authors analysed the visceral leishmaniasis (vl) aspects in the state of maranhão, brazil, from 1982 to 1993. the disease happens to occur predominantly in são luís island (ma) and during the epidemic period, town of são luís was pointed out as the main endemic area. the greatest frequency of cases occurred in 1993, despite the use of insecticide and dogs control. there was predominance of age between 0- to 4-year-old population with 58.04% of cases. neither the human disease nor the rainfal ...19968701042
risk factors associated with asymptomatic infection by leishmania chagasi in north-east brazil.various factors have been associated with a predisposition to the development of clinical american visceral leishmaniasis (avl). however, little information is available about the factors that predispose to asymptomatic infection. to identify the risk factors associated with asymptomatic infection, a study was carried out between july 1997 and june 1998 on children aged 0-5 years in the districts of vila nova and bom viver in the municipality of raposa in the island of são luís, state of maranhã ...200211925984
canine visceral leishmaniasis in são josé de ribamar, maranhão state,, we describe the situation of canine visceral leishmaniasis in two villages of são josé de ribamar in maranhão state/brazil, where human cases have been registered. blood samples of 36 household crossbred dogs from sergio tamer village and 43 dogs from quinta village were collected and the serum used for serological diagnosis. an indirect fluorescent antibody test (ifat) and enzyme-linked immunosorbent assay (elisa) were used to detect antibodies against leishmania. the clinical examination ...200515967576
[prevalence of infection by leishmania chagasi using elisa (rk39 and crude) and the montenegro skin test in an endemic leishmaniasis area of maranhão, brazil].a prospective study was undertaken in 1,520 children less than 15 years of age in são josé de ribamar, maranhão, brazil, from june 1994 to january 1995, to evaluate the prevalence and characteristics (socioeconomic, environmental, and behavioral) associated with infection by leishmania chagasi. montenegro skin test (mst) and enzyme-linked immunosorbent assay (elisa-rk39 and crude) test were used to detect infection. the statistical analysis used the chi2 test with yates correction and a p value ...200616410865
[comparative study about the specific antileishmania of immunoglobulin g and e as markers of infection and illness among dwellers of a visceral leishmaniasis endemic area in são luis, ma].comparative study regarding igg and ige anti-leishmania as markers of infection and illness among residents of a visceral leishmaniasis visceral leishmaniasis endemic area, são luis, ma in the period from may 1999 to may 2000. all the 1,016 individuals younger than 16 years old were tested for the presence of igg by elisa. a total of 174 (17.1%) children revealed a positive igg test and 4 children showed symptoms of classical visceral leishmaniasis during the time of the survey: 85 ige anti-leis ...200616501764
leishmania (leishmania) infantum/chagasi: histopathological aspects of the skin in naturally infected dogs in two endemic the new world, visceral leishmaniasis (vl), which is a progressive disease and frequently fatal, is caused by leishmania (leishmania) infantum/chagasi. it is endemic in many regions of brazil and occasionally occurs in non-endemic regions when dogs from an endemic area are introduced. the aim of the present study is to compare different skin infection patterns of dogs from two leishmaniasis endemic areas. a histological analysis of dogs from campo grande, mato grosso do sul state, a region wh ...201019854175
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