Mendis, N.P.M.De La Motte, P.U.De Silva, A.V.K.V.Maheshwaran, K.Sivayoham, S.2016-01-142016-01-141977The Ceylon Medical Journal, 22(1)pp.24-40https://dl.nsf.gov.lk/handle/1/20509Medical SciencesInfectious diseasesEpidemiological surveysPreventive medicineEnvironmental healthSanitation servicesWater pollutionThe spread of Cholera El Tor in Sri Lanka in 1974Article