Evaluation of three serological tests for the detection of human plague in northeast Brazil
Mem. Inst. Oswaldo Cruz
;
87(1): 87-92, jan.-mar. 1992. tab
Article
Dans Anglais
| LILACS
| ID: lil-116287
RESUMO
The passive haemagglutination (PHA) test, enzyme-linked immunosorbent assay (ELISA) and the dot enzyme-immunosorbent assay (DOT-ELISA) were used to detect the levels of IgG antibodies against the Fraction 1 (F1) antigen of Yersinia pestis in sera of plague-infected patients from Northeast Brazil. Twenty three selected PHA-positive sera of subjects with bacteriological confirmation of plague were also positive in the DOT-ELISA but only 19 were detected by the conventional ELISA technique. Another group of 186 serum samples from subjects diagnosed as plague-infected by clinical and epidemiological parameters, but PHA-negative, were screened with DOT-ELISA and 11 gave positive results. The specificity of the assays on the serological detection of plague was confirmed in inhibition tests using purified F1 antigen. These results suggest that DOT-ELISA can be an useful, simple and more sensitive alternative for the serodiagnosis of plague in Northeast Brazil
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Peste
/
Yersinia pestis
/
Test ELISA
Type d'étude:
Etude diagnostique
Limites du sujet:
Humains
Pays comme sujet:
Amérique du Sud
/
Brésil
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
1992
Type:
Article
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