Umegbolu, Emmanuel I., and Moses E. Offor. “Bacteriological Qualities of Sources of Domestic Water Supply and Prevalence of Typhoid Fever in Some Communities of Enugu State, Southeast, Nigeria: A Cross-Sectional Study”. International Journal Of Community Medicine And Public Health 4, no. 6 (May 22, 2017): 1805–1812. Accessed November 17, 2025. https://www.ijcmph.com/index.php/ijcmph/article/view/1221.