Assessing fecal contamination from human and environmental sources using Escherichia coli as an indicator in rural eastern Ethiopian households—a cross-sectional study from the EXCAM project - Deblais, Loïc; Ahmedo, Belisa Usmael; Ojeda, Amanda; Mummed, Bahar; Wang, Yuke; Mekonnen, Yitagele Terefe; Demisie Weldesenbet, Yenenesh; Hassen, Kedir A.; Brhane, Mussie; McKune, Sarah; Havelaar, Arie H.; Liang, Song; et al. (Frontiers in Public Health, 2025)