We are grateful to all study participants who volunteered their time to participate in the study. We are also grateful for the collaboration with the Lions-Carter Center Sight-First Initiative.
WHO, 2019. WHO alliance for the global elimination of trachoma by 2020: progress report on elimination of trachoma, 2018. Weekly Epidemiological Rec 94: 317–328.
WHO, 1998. WHA51.11 Global Elimination of Blinding Trachoma. Geneva, Switzerland: World Health Organization. Available at: http://www.who.int/neglected_diseases/mediacentre/WHA_51.11_Eng.pdf. Accessed September 15, 2020.
Cerulli LCC, Culasso F, Martelli M, Tria M, 1981. Epidemiolgoical study of trachoma in two regions of Ethiopia. Rev Int Trach Path 68: 147–155.
Assefa TAD, Foster A, Schwrtz E, 2001. Results of trachoma rapid assessment in 11 villages of south Gondar zone, Ethiopia. Trop Doctor 31: 202–204.
Cumberland P, Hailu G, Todd J, 2005. Active trachoma in children aged three to nine years in rural communities in Ethiopia: prevalence, indicators and risk factors. Trans R Soc Trop Med Hyg 99: 120–127.
Ngondi J 2009. Evaluation of three years of the SAFE strategy (surgery, antibiotics, facial cleanliness and environmental improvement) for trachoma control in five districts of Ethiopia hyperendemic for trachoma. Trans R Soc Trop Med Hyg 103: 1001–1010.
Keenan JD, Lakew T, Alemayehu W, Melese M, House JI, Acharya NR, Porco TC, Gaynor BD, Lietman TM, 2011. Slow resolution of clinically active trachoma following successful mass antibiotic treatments. Arch Ophthalmol 129: 512–513.
Gebre T, Ayele B, Zerihun M, Genet A, Stoller NE, Zhou Z, House JI, Sun NY, Ray KJ, Emerson PM, 2012. Comparison of annual versus twice-yearly mass azithromycin treatment for hyperendemic trachoma in Ethiopia: a cluster-randomised trial. Lancet 379: 143–151.
Emerson PM 2008. Integrating an NTD with one of “The big three”: combined malaria and trachoma survey in Amhara region of Ethiopia. PLoS Negl Trop Dis 2: e197.
Ngondi J, Teferi T, Gebre T, Shargie EB, Zerihun M, Ayele B, Adamu L, King JD, Cromwell EA, Emerson PM, 2010. Effect of a community intervention with pit latrines in five districts of Amhara, Ethiopia. Trop Med Int Health 15: 592–599.
King JD 2013. Intestinal parasite prevalence in an area of Ethiopia after implementing the SAFE strategy, enhanced outreach services, and health extension program. PLoS Negl Trop Dis 7: e2223.
King JD 2014. Prevalence of trachoma at sub-district level in Ethiopia: determining when to stop mass azithromycin distribution. PLoS Negl Trop Dis 8: e2732.
Stewart AEP 2019. Progress to eliminate trachoma as a public health problem in Amhara national regional state, Ethiopia: results of 152 population-based surveys. Am J Trop Med Hyg 101: 1286–1295.
Nash SD 2018. Ocular Chlamydia trachomatis infection under the SAFE strategy in Amhara, Ethiopia, 2011–2015. Clin Infect Dis 67: 1840–1846.
Nash SD 2020. Ocular Chlamydia trachomatis infection and infectious load among pre-school aged children within trachoma hyperendemic districts receiving the SAFE strategy, Amhara region, Ethiopia. PLoS Negl Trop Dis 14: e0008226.
Astale T 2018. Population-based coverage survey results following the mass drug administration of azithromycin for the treatment of trachoma in Amhara, Ethiopia. PLoS Negl Trop Dis 12: e0006270.
Ebert CD 2019. Population coverage and factors associated with participation following a mass drug administration of azithromycin for trachoma elimination in Amhara, Ethiopia. Trop Med Int Health 24: 493–501.
Sata E 2018. Evaluation of a school trachoma health program after one year of program implementation in primary schools of Amhara regional state, Ethiopia. Conference abstract, New Orleans, LA. Am Soc Trop Med Hyg.
Nash SD 2018. Trachoma prevalence remains below threshold in five districts after stopping mass drug administration: results of five surveillance surveys within a hyperendemic setting in Amhara, Ethiopia. Trans R Soc Trop Med Hyg 112: 538–545.
Solomon AW 2015. The global trachoma mapping project: methodology of a 34-country population-based study. Ophthalmic Epidemiol 22: 214–225.
WHO/UNICEF, 2016. Improved and unimproved water sources and sanitation facilities. Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (JMP). Geneva, Switzerland: World Health Organization.
Thylefors B, Dawson CR, Jones BR, West SK, Taylor HR, 1987. A simple system for the assessment of trachoma and its complications. Bull World Health Organ 65: 477–483.
Ramadhani AM, Derrick T, Macleod D, Holland MJ, Burton MJ, 2016. The relationship between active trachoma and ocular Chlamydia trachomatis infection before and after mass antibiotic treatment. PLoS Negl Trop Dis 10: e0005080.
Jordan AM 2017. Village-level medicaiton logbook audit following a trachoma mass drug administration campaign in Amahara, Ethiopia in 2016. Conference abstract, Baltimore, MD. Am Soc Trop Med Hyg.
Pickering H 2020. Genomics of ocular chlamyda trachomatis after 5 years of SAFE interventions for trachoma in Amhara, Ethiopia. J Infect Dis Oct 9: jiaa615.
West SK, Munoz B, Mkocha H, Gaydos CA, Quinn TC, 2011. Number of years of annual mass treatment with azithromycin needed to control trachoma in hyper-endemic communities in Tanzania. J Infect Dis 204: 268–273.
Pinsent A, Burton MJ, Gambhir M, 2016. Enhanced antibiotic distribution strategies and the potential impact of facial cleanliness and environmental improvements for the sustained control of trachoma: a modelling study. BMC Med 14: 71.
Borlase A, Blumberg S, Callahan EK, Diener MS, Nash SD, Porco TC, Solomon AW, Lietman TM, Prada JM, Hollingsworth D, 2020. Modelling trachoma post 2020: opportunities for mitigating the impact of COVID-19 and accelerating progress towards elimination. Trans R Soc Trop Med Hyg. (In Press).
Keenan JD 2018. Mass azithromycin distribution for hyperendemic trachoma following a cluster-randomized trial: a continuation study of randomly reassigned subclusters (TANA II). PLoS Med 15: e1002633.
Altherr FM 2019. Associations between water, sanitation and hygiene (WASH) and trachoma clustering at aggregate spatial scales, Amhara, Ethiopia. Parasit Vectors 12: 540.
Lewallen S, Massae P, Tharaney M, Somba M, Geneau R, Macarthur C, Courtright P, 2008. Evaluating a school-based trachoma curriculum in Tanzania. Health Educ Res 23: 1068–1073.
Aiemjoy K 2018. Defining diarrhea: a population-based validation study of caregiver-reported stool consistency in the Amhara region of Ethiopia. Am J Trop Med Hyg 98: 1013–1020.
Nute AW 2018. Trachoma grader reliability results from nine trachoma impact survey trainings conducted in Amhara, Ethiopia, 2011–2017. Conference abstract, New Orleans, LA. Am Soc Trop Med Hyg.
House JI 2009. Assessment of herd protection against trachoma due to repeated mass antibiotic distributions: a cluster-randomised trial. Lancet 373: 1111–1118.