Diffusion-in-gel enzyme-linked immunosorbent assay (DIG-ELISA) for Chagas'disease serodiagnosis
Braz. j. med. biol. res
;
24(5): 471-83, 1991. tab
Artículo
en Inglés
| LILACS
| ID: lil-99479
RESUMO
Diffusion-in-gel enzyme-linked immunosorbent assay (DIG-ELISA) was standardized and evaluated for the diagnosis of Chagas'disease in comparison with the conventional serological tests indirect immunofluorescence (IFI), passive hemagglutination (PHA) and complement fixation (CF). A total of 236 serum samples positive and negative for the serodiagnosis of Chagas'disease were studied. The group included 50 serum samples serologically positive for leishmaniasis and 36 positive for malaria. The best diagnostic performance of DIG-ELISA was observed when serum samples were diluted to 18 and a diameter of zero mm (no color) was taken as the cut-off. Under these conditions, the relative indices of sensitivity, specificity and agreement were 100%. High positive correlation coeficients were obtained between DIG-ELISA and IFI (r1=0.9010), PHA (r2=0.8943) and CF (r3=0.8269). We conclude that DIG-ELISA provides an alternative technique for screening chagasic infections, as well as for seroepidemiological surveys mainly because it is simple, easy to carry out and does not require expensive equipment
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Índice:
LILACS (Américas)
Asunto principal:
Ensayo de Inmunoadsorción Enzimática
/
Inmunodifusión
/
Enfermedad de Chagas
Tipo de estudio:
Estudio diagnóstico
Idioma:
Inglés
Revista:
Braz. j. med. biol. res
Asunto de la revista:
Biologia
/
Medicina
Año:
1991
Tipo del documento:
Artículo
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