RESUMEN
The sequential development of the hydatid immunodiagnostic activities of the control program of the Province of Neuquén, Argentina is described. Test results were used to obtain immunological confirmation of clinical cases and to detect asymptomatic cyst carriers amongst residents of rural endemic areas. The information was also valuable for improving the accuracy of prevalence estimates of human hydatidosis and the quality of surveillance data in different areas of the Province, characterized by varying degrees of environmental contamination by Echinococcus granulosus. In population groups examined by radiologic and immunologic methods, the latter detected more cases. When only immunodiagnostic surveys were carried out, mostly liver but also pulmonary hydatidosis cases were detected. This experience illustrates the advantages which may be obtained in endemic areas through the local application of hydatid immunodiagnosis based on arc 5 positivity.
Asunto(s)
Equinococosis/diagnóstico , Inmunodifusión , Inmunoelectroforesis , Adolescente , Adulto , Argentina , Portador Sano/diagnóstico , Niño , Preescolar , Equinococosis/epidemiología , Equinococosis/prevención & control , Equinococosis Hepática/diagnóstico , Equinococosis Pulmonar/diagnóstico , Humanos , Lactante , Pruebas de Fijación de LátexRESUMEN
The results of a control program of hydatid disease in five jurisdictions of the Patagonian Region in Argentina are presented. The information is glossed in rates of infection in man (95 x 100,000 in 1988 and 15 x 100,000 in 1983), dogs (21.6% in 1983 and 3.1% in 1988) and sheep (16.6% in 1983 and 2.6% in 1988). Factors that condition the endemic situation of hydatidosis in the region are discussed.
Asunto(s)
Enfermedades de los Perros/transmisión , Equinococosis/transmisión , Animales , Argentina , Enfermedades de los Perros/prevención & control , Perros , Equinococosis/prevención & control , Humanos , Incidencia , Praziquantel/uso terapéuticoRESUMEN
Ultrasonography (US) and serology (double diffusion for antigen 5 (dd5] were used for the screening of hydatid disease in 1,418 asymptomatic individuals from two provinces in Argentina. A total of 122 positive subjects were identified and in 120 of them lesions consistent with hydatid disease were observed at US (98.4%) while only 19 had positive dd5 tests (15.8%). Chest radiography was performed in 647 of the subjects and an additional 4 lesions were found. Surgery was performed in 32 patients, confirming in all of them the sonographic diagnosis. It is suggested that US should be used in the screening for hydatidosis in high-risk populations as well as in follow-up programmes.