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​Delineation of transmission zones to improve the evidence-base for stop MDA decisions and reduce the risk of resurgence
Disease Focus: Lymphatic Filariasis & Onchocerciasis

Research Question to be Addressed: There are no evidence-based criteria for delineating transmission zones or evaluation units for stop mass drug administration (MDA) decisions. Stopping MDA in one part of a transmission zone when transmission is continuing in another part could lead to resurgence. Objective methods to delineate transmission zones/evaluation units are needed to ensure MDA is stopped with known, acceptable and accepted risk of resurgence relative to the cost of stopping too early or later than necessary.

Moderators: Daniel Boakye, The END Fund, Noguchi Memorial Institute for Medical Research (Ghana) & Annette C. Kuesel, World Health Organization/TDR (Switzerland)


"Could onchocerciasis elimination in Burkina Faso be threatened by ongoing transmission in Côte d’Ivoire and Ghana?" - Lassane Koala, Research Institute of Health Sciences (Burkina Faso)

"Population genomics for identification of O. volvulus transmission zones" - Warwick Grant, La Trobe University (Australia)

"Modelling the risk of resurgence in an area after cessation of MDA due to ‘visitors’ to and from neighbouring areas with ongoing transmission" - Karen McCulloch, La Trobe University (Australia)

"Parasite genetic structure and delineation of LF transmission zones in the Samoan Islands" - Shannon Hedtke, La Trobe University (Australia)

Mar 31, 2021 07:00 AM in Eastern Time (US and Canada)

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