Impact of mass drug administration for elimination of lymphatic filariasis in Nepal

Chet Raj Ojha, Basant Joshi, Khagendra Prakash Kc, Shyam Prakash Dumre, Keshav Kumar Yogi, Bandana Bhatta, Tulasi Adhikari, Kathryn Crowley and Babu Ram Marasini

PLOS Neglected Tropical Diseases, 2017, vol. 11, issue 7, 1-12

Abstract: Background: Lymphatic filariasis (LF) is a neglected tropical disease transmitted by mosquitoes. Nepal has implemented a national effort to eliminate LF by 2020 through mass drug administration (MDA) using diethylcarbamazine (DEC) and albendazole (ALB). We assessed the impact of MDAs on LF in selected districts of Nepal after the recommended six MDA rounds had been completed. Methodology and principal findings: Baseline surveys were conducted in seven districts and mapping data were used as baseline in the other three districts before starting MDA in 2009. LF antigen (Ag) prevalence ranged from 1.06% to 20% among districts included in the baseline and mapping study. The number of people who received DEC and ALB were recorded during each MDA round and population-based cluster surveys were conducted at least once in each district during the life of the program. The reported MDA coverage in five districts was consistently at least 65%. Two districts achieved the targeted coverage in four out of five rounds and the rest three districts achieved the target only in the first round. A pre-transmission assessment survey (pre-TAS) was conducted in one sentinel site and at least one spot check site in each of the districts after five MDA rounds. In pre-TAS, all the sites of five districts (Pyuthan, Arghakhanchi, Kaski, Bhaktapur, and Kathmandu) and all but one spot check site of Lalitpur district had LF Ag

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pntd00:0005788

DOI: 10.1371/journal.pntd.0005788

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