No evidence of lymphatic filariasis transmission in Bamako urban setting after three mass drug administration rounds



Coulibaly, Yaya Ibrahim, Sangare, Moussa, Dolo, Housseini, Soumaoro, Lamine, Coulibaly, Siaka Yamoussa, Dicko, Ilo, Diabate, Abdoul Fatao, Diarra, Lamine, Coulibaly, Michel Emmanuel, Doumbia, Salif Seriba
et al (show 7 more authors) (2022) No evidence of lymphatic filariasis transmission in Bamako urban setting after three mass drug administration rounds. PARASITOLOGY RESEARCH, 121 (11). pp. 3243-3248.

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Abstract

Lymphatic filariasis (LF) elimination activities started in Mali in 2005 in the most endemic areas and reached countrywide coverage in 2009. In 2004, the district of Bamako was endemic for LF with a prevalence of 1.5%. The current study was designed to determine LF endemicity level in the urban area of Bamako after three rounds of ivermectin and albendazole mass drug administration (MDA). A cross-sectional study was conducted in 2011 in Bamako city, consisting of human prevalence and entomological surveys. Volunteers aged 14 years and above were invited to participate and tested for evidence of Wuchereria bancrofti using night time blood thick smear microfilarial count and blood spots for LF antibodies using the SD BIOLINE Oncho/LF IgG4 Biplex rapid test (Ov16/Wb123). Mosquitoes were collected using CDC light and gravid traps and tested using molecular methods. Poolscreen software v2.0 was used to estimate vector transmission potential. Of the 899 volunteers, one (0.11%) was found to be positive for LF using the Oncho/LF IgG4 Biplex rapid test, and none was found to have Wuchereria bancrofti microfilariae. No mosquitoes were found infected among 6174 Culex spp. (85.2%), 16 Anopheles gambiae s.l. (An. gambiae s.l.) (0.2%), 26 Aedes spp. (0.4%), 858 Ceratopogonidae (11.8%) and 170 other insects not identified (2.3%) tested. Our data indicate that there was no active LF transmission in the low prevalence urban district of Bamako after three MDA rounds. These data helped the National LF programme move forward towards the elimination goal.

Item Type: Article
Uncontrolled Keywords: Lymphatic filariasis, Mass drug administration, Vector collection methods, Anopheles gambiae complex, Sudan savannah area, Mali
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Infection, Veterinary and Ecological Sciences
Depositing User: Symplectic Admin
Date Deposited: 27 Sep 2022 08:31
Last Modified: 18 Jan 2023 20:41
DOI: 10.1007/s00436-022-07648-8
Open Access URL: https://link.springer.com/article/10.1007/s00436-0...
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3165042