Chandrasena, T.G.A.N.Premaratna, R.Samarasekera, D.S.de Silva, N.R.2016-11-252016-11-252016Transactions of the Royal Society of Tropical Medicine and Hygiene. 2016;110(10):620-6220035-9203 (Print)1878-3503 (Electronic)0035-9203 (Linking)http://repository.kln.ac.lk/handle/123456789/15251Indexed in MEDLINEBACKGROUND: Sri Lanka was recently declared by WHO to have eliminated lymphatic filariasis as a public health problem, after conclusion of annual mass drug administration. Our aim was to assess the lymphatic filariasis situation, following mass drug administration. METHODS: Surveillance was done in two districts of the Western Province in two consecutive phases (2009-2010 and 2013-2015), by examining 2461 thick night blood smears and performing 250 dipstick tests on children for antibodies to Brugia malayi. RESULTS AND CONCLUSIONS: Decline in bancroftian microfilaraemia (microfilaria rate 0.32% to zero) supports elimination, but re-emergence of brugian filariasisis (antibody rate, 1.6%; one microfilaria positive) is a cause for concern.en-USElephantiasis, FilarialElephantiasis, Filarial-drug therapyElephantiasis, Filarial-epidemiologyElephantiasis, Filarial-prevention & controlFilaricidesFilariasisArticle