1. Centre for Neglected Tropical Disease, Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, UK
2. National Lymphatic Filariasis Elimination Programme, Ministry of Health, P.O. Box 30377, Lilongwe 3, Malawi
3. College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, 1 James Cook Drive, Douglas, QLD 4811, Australia
4. Department of Livestock and One Health, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, 146 Brownlow Hill, Liverpool L3 5RF, UK