%0 Journal Article %K onchocerciasis %K Elimination %K Loa loa %K Co-infection %K Retesting %K ivermectin (IVM) %B The Lancet Infectious Diseases %D 2019 %G eng %R 10.1016/S1473-3099(19)30554-7 %T Implications for annual retesting after a test-and-not-treat strategy for onchocerciasis elimination in areas co-endemic with Loa loa infection: an observational cohort study