Erhuotor E. E.; Eggon H. A.; Ajidani M. S.; Osekweyi J. O. TYPHOID AND CHOLERA CHRONICLES: THEIR DUAL EFFECT ON LIFE EXPECTANCY IN DELTA STATE, NIGERIA. FUDMA JOURNAL OF SCIENCES, v. 7, n. 5, p. 348 - 355, 31 Oct. 2023.