Serological certification of the interruption of the vectorial transmission of Chagas disease in Chile

In 1999 an International Commission of Experts evaluated the sanitary interventions that started in 1980 to eliminate Triatoma infestans, the biological vector of Chagas disease, to certify if the conditions needed to interrupt the transmission, were achieved. To report the data used by the Internat...

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Veröffentlicht in:Revista medíca de Chile 2001-03, Vol.129 (3), p.264-269
Hauptverfasser: Lorca, M, García, A, Bahamonde, M I, Fritz, A, Tassara, R
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container_end_page 269
container_issue 3
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container_title Revista medíca de Chile
container_volume 129
creator Lorca, M
García, A
Bahamonde, M I
Fritz, A
Tassara, R
description In 1999 an International Commission of Experts evaluated the sanitary interventions that started in 1980 to eliminate Triatoma infestans, the biological vector of Chagas disease, to certify if the conditions needed to interrupt the transmission, were achieved. To report the data used by the International certification commission to certify the interruption of vectorial transmission of Chagas disease in Chile. A comparative evaluation of the prevalence of Trypanosoma cruzi antibodies in children surveyed between 1994 and 1995 and between 1995 and 1999. In the first period, 5,948 children were surveyed and in the second, 5,069 children were studied. Twenty children (0.4%) were positive for Trypanosoma cruzi antibodies in the second survey. These figures were significantly lower than the 1.1% prevalence detected between 1994 and 1995. In only three of the 20 cases, the transmission through vectors was confirmed, which represents a 99.4% reduction of this way of transmission. Based on these findings, the Commission certified that Chile is the second country in Latin America to interrupt the vector transmission of Chagas disease. The successful public health program for Chagas disease will have a positive impact improving the quality of life of rural populations, that are most exposed to the disease.
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Animals
Antibodies, Protozoan - blood
Chagas Disease - immunology
Chagas Disease - prevention & control
Chagas Disease - transmission
Child
Child, Preschool
Chile
Chile - epidemiology
Disease Vectors
Humans
Infant
Infant, Newborn
Population Surveillance
Prevalence
Reduviidae
Rural Population
Triatoma
Triatoma infestans
Trypanosoma cruzi
title Serological certification of the interruption of the vectorial transmission of Chagas disease in Chile
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