Nilmini T G A Chandrasena1, Ranjan Premaratna2, Dilhani S Samarasekera3, Nilanthi R de Silva4. 1. Department of Parasitology, Faculty of Medicine, University of Kelaniya, Sri Lanka nilminicha64@gmail.com. 2. Department of Medicine, Faculty of Medicine, University of Kelaniya, Sri Lanka. 3. Anti Filariasis Campaign, Ministry of Health, Sri Lanka. 4. Department of Parasitology, Faculty of Medicine, University of Kelaniya, Sri Lanka.
Abstract
BACKGROUND: 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.
BACKGROUND: 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.
Authors: Chandana H Mallawarachchi; T G A Nilmini Chandrasena; Ranjan Premaratna; S M N S M Mallawarachchi; Nilanthi R de Silva Journal: Parasit Vectors Date: 2018-01-29 Impact factor: 3.876
Authors: Chandana H Mallawarachchi; Nilmini T G A Chandrasena; Susiji Wickramasinghe; Ranjan Premaratna; Nilmini Y I S Gunawardane; Navoda S M S M Mallawarachchi; Nilanthi R de Silva Journal: PLoS One Date: 2018-11-02 Impact factor: 3.240