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Assessing transmission of lymphatic filariasis using parasitologic, serologic, and entomologic tools after mass drug administration in American Samoa.

Identifieur interne : 002E85 ( PubMed/Corpus ); précédent : 002E84; suivant : 002E86

Assessing transmission of lymphatic filariasis using parasitologic, serologic, and entomologic tools after mass drug administration in American Samoa.

Auteurs : Janice M. Mladonicky ; Jonathan D. King ; Jennifer L. Liang ; Eric Chambers ; Molisamoa Pa'Au ; Mark A. Schmaedick ; Thomas R. Burkot ; Mark Bradley ; Patrick J. Lammie

Source :

RBID : pubmed:19407122

English descriptors

Abstract

Assessing the interruption of lymphatic filariasis transmission after annual mass drug administration (MDA) requires a better understanding of how to interpret results obtained with the available diagnostic tools. We conducted parasitologic, serologic, and entomologic surveys in three villages in American Samoa after sentinel site surveys suggested filarial antigen prevalence was < 1% after five annual MDAs with diethylcarbamazine and albendazole. Antigen and antifilarial antibody prevalence ranged from 3.7% to 4.6% and from 12.5% to 14.9%, respectively, by village. Only one person was microfilaria positive. Although no children less than 10 years of age were antigen positive, antifilarial antibody prevalence in this age group was 5.1% and antibody-positive children were detected in all three villages. Wuchereria bancrofti-infected mosquitoes were also detected in all three villages. Thus, monitoring of infections in mosquitoes and antifilarial antibody levels in children may serve as indicators of local transmission and be useful for making decisions about program endpoints.

PubMed: 19407122

Links to Exploration step

pubmed:19407122

Le document en format XML

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