prevalência de infecção por leishmania chagasi utilizando os métodos de elisa (rk39 e crude) e intradermorreação de montenegro em área endêmica do maranhão, brasil prevalence of infection by leishmania chagasi using elisa (rk39 and crude) and the montenegro skin test in an endemic leishmaniasis area of maranhão, brazil
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2005
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Abstract
Realizou-se estudo prospectivo com 1.520 indivíduos menores de 15 anos no Município de São José de Ribamar, Maranhão, Brasil, de junho de 1994 a janeiro de 1995, com o objetivo de avaliar a prevalência e as características (fatores sócio-econômicos, ambientais e hábitos de vida) associadas à infecção por Leishmania chagasi. Realizou-se Intradermorreação de Montenegro (IDRM) e sorologia por Enzyme Linked Immunosorbant Assay (ELISA-rK39 e CRUDE). Na análise estatística foi utilizado o teste chi2 com correção de Yates, sendo considerado significante um valor de p < 0,05. A prevalência de infecção foi de 61,7% pela IDRM, 19,4% pelo ELISA-rK39 e 19,7% pelo ELISA-CRUDE. Foi observada associação entre leishmaniose na família (p = 0,001), tipo de abastecimento de água (p = 0,000) e aplicação de inseticida (p = 0,000) com a infecção por L. chagasi pela IDRM. Nenhuma associação com infecção por L. chagasi foi observada utilizando-se a sorologia ELISA-rK39 ou CRUDE. Medidas de controle mais efetivas são necessárias para reduzir a prevalência da doença e detectar casos assintomáticos dentre o elevado porcentual de infectados nessa localidade.
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 less than 0.05 was considered statistically significant. Prevalence of infection was 61.7% as measured by MST, 19.4% according to ELISA (rK39), and 19.7% by ELISA (CRUDE). Association was detected between leishmaniasis in the family, water supply, application of insecticide, and infection by L. chagasi using MST. No association with infection by L. chagasi was detected using ELISA rK39 or CRUDE. More effective control measures are needed to reduce prevalence and to detect asymptomatic cases in this high percentage of infected children.
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 less than 0.05 was considered statistically significant. Prevalence of infection was 61.7% as measured by MST, 19.4% according to ELISA (rK39), and 19.7% by ELISA (CRUDE). Association was detected between leishmaniasis in the family, water supply, application of insecticide, and infection by L. chagasi using MST. No association with infection by L. chagasi was detected using ELISA rK39 or CRUDE. More effective control measures are needed to reduce prevalence and to detect asymptomatic cases in this high percentage of infected children.
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| Authors | ;Maria do Desterro Soares Brandão Nascimento;Edilberto Costa Souza;Leopoldo Muniz da Silva;Plinio da Cunha Leal;Karleno de Lima Cantanhede;Geusa Felipa de Barros Bezerra;Graça Maria de Castro Viana |
| Journal | iberian conference on information systems and technologies, cisti |
| Year | 2005 |
| DOI |
10.1590/S0102-311X2005000600028
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| URL | |
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