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Further evidences on a new diagnostic approach for monitoring human Leishmania (L.) infantum chagasi infection in Amazonian Brazil

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2010
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Further evidences on a new diagnostic approach for monitoring human Leishmania (L.) infantum chagasi infection in Amazonian Brazil .pdf (248.2xmlui.dri2xhtml.METS-1.0.size-kilobytes)
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http://patua.iec.gov.br/handle/iec/685
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Silveira, Fernando Tobias
Lainson, Ralph
Souza, Adelson Alcimar Almeida de
Campos, Marliane Batista
Carneiro, Liliane Almeida
Lima, Luciana Vieira Rego
Ramos, Patrícia Karla Santos
Gomes, Claudia Maria de Castro
Laurenti, Marcia Dalastra
Corbett, Carlos Eduardo Pereira
xmlui.dri2xhtml.METS-1.0.item-abstract
This was a prospective study carried out during a period over 2 years (May/2006-September/2008) with a cohort of 1,099 individuals of both genders, aged 1 year old and older, from an endemic area of American visceral leishmaniasis (AVL) in Pará state, Brazil. The object was to analyze the prevalence and incidence of human Leishmania (L.) infantum chagasi infection as well as the dynamics evolution of its clinical-immunological profiles prior identified: (1) asymptomatic infection (AI); (2) symptomatic infection (SI = AVL); (3) sub-clinical oligosymptomatic infection (SOI); (4) sub-clinical resistant infection (SRI) and; (5) indeterminate initial infection (III). The infection diagnosis was performed by using both the indirect fluorescent antibody test and leishmanin skin test with amastigotes and promastigotes antigens of L. (L.) i. chagasi, respectively. A total of 187 cases of infection were recorded in the prevalence (17 percent), 117 in the final incidence (6.9 percent), and 304 in the accumulated prevalence (26.7 percent), which provided the following distribution into the clinical-immunological profiles: AI, 51.6 percent; III, 22.4 percent; SRI, 20.1 percent; SOI, 4.3 percent; and SI (=AVL), 1.6 percent. The major finding regarding the dynamics evolution of infection was concerned to III profile, from which the cases of infection evolved to either the resistant profiles, SRI (21 cases, 30.8 percent) and AI (30 cases, 44.1 percent), or the susceptible SI (=AVL; 1 case, 1.5 percent); the latter 16 cases remained as III till the end of the study. These results provided the conclusion that this diagnostic approach may be useful for monitoring human L. (L.) i. chagasi infection in endemic area and preventing the high morbidity of severe AVL cases.
xmlui.dri2xhtml.METS-1.0.item-citation
SILVEIRA, Fernando Tobias. Further evidences on a new diagnostic approach for monitoring human Leishmania (L.) infantum chagasi infection in Amazonian Brazil. Parasitology Research, v. 106, n. 2, p. 377-386, 2010
xmlui.dri2xhtml.METS-1.0.item-decsPrimary
Leishmania infantum / parasitologia
Leishmaniose Visceral / diagnóstico
Leishmaniose Visceral / epidemiologia
Leishmania infantum / isolamento & purificação
Estudos Prospectivos
Imunofluorescência / métodos
Brasil / epidemiologia
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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br