The Impact of Six Annual Rounds of Mass Drug Administration on Wuchereria bancrofti Infections in Humans and in Mosquitoes in Mali

Wuchereria bancrofti prevalence and transmission were assessed in six endemic villages in Sikasso, Mali prior to and yearly during mass drug administration (MDA) with albendazole and ivermectin from 2002 to 2007. Microfilaremia was determined by calibrated thick smear of night blood in adult volunte...

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Veröffentlicht in:The American journal of tropical medicine and hygiene 2015-08, Vol.93 (2), p.356-360
Hauptverfasser: Coulibaly, Yaya I, Dembele, Benoit, Diallo, Abdallah Amadou, Konaté, Siaka, Dolo, Houseini, Coulibaly, Siaka Yamoussa, Doumbia, Salif Seriba, Soumaoro, Lamine, Coulibaly, Michel Emmanuel, Bockarie, Moses J, Molyneux, David, Nutman, Thomas B, Klion, Amy D, Toure, Yeya T, Traore, Sekou F
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container_issue 2
container_start_page 356
container_title The American journal of tropical medicine and hygiene
container_volume 93
creator Coulibaly, Yaya I
Dembele, Benoit
Diallo, Abdallah Amadou
Konaté, Siaka
Dolo, Houseini
Coulibaly, Siaka Yamoussa
Doumbia, Salif Seriba
Soumaoro, Lamine
Coulibaly, Michel Emmanuel
Bockarie, Moses J
Molyneux, David
Nutman, Thomas B
Klion, Amy D
Toure, Yeya T
Traore, Sekou F
description Wuchereria bancrofti prevalence and transmission were assessed in six endemic villages in Sikasso, Mali prior to and yearly during mass drug administration (MDA) with albendazole and ivermectin from 2002 to 2007. Microfilaremia was determined by calibrated thick smear of night blood in adult volunteers and circulating filarial antigen was measured using immunochromatographic card test in children < 5 years of age. Mosquitoes were collected by human landing catch from July to December. None of the 686 subjects tested were microfilaremic 12 months after the sixth MDA round. More importantly, circulating antigen was not detected in any of the 120 children tested, as compared with 53% (103/194) before the institution of MDA. The number of infective bites/human/year decreased from 4.8 in 2002 to 0.04 in 2007, and only one mosquito containing a single infective larva was observed 12 months after the final MDA round. Whether this dramatic reduction in transmission will be sustained following cessation of MDA remains to be seen.
doi_str_mv 10.4269/ajtmh.14-0516
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subjects Adolescent
Adult
Albendazole - therapeutic use
Animals
Child
Child, Preschool
Cross-Sectional Studies
Culicidae
Culicidae - parasitology
Drug Therapy, Combination - methods
Elephantiasis, Filarial - drug therapy
Elephantiasis, Filarial - epidemiology
Female
Humans
Ivermectin - therapeutic use
Larva - drug effects
Larva - metabolism
Male
Mali - epidemiology
Middle Aged
Prevalence
Wuchereria bancrofti
Wuchereria bancrofti - drug effects
Young Adult
title The Impact of Six Annual Rounds of Mass Drug Administration on Wuchereria bancrofti Infections in Humans and in Mosquitoes in Mali
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