Aretrospective study of the epidemiology of Cholera in Kerb£La during the years 1989, 1990,. 1991 shows: 1- therewas 2.1 li cases of Cholera and Jf3 carriers 2- Organisms isolated from cases was Ogawa=97-3/* , Nag=3.l7 .3- Organisms isolated from carriers :0gawa=93?* ,Nag=6.9/f'» _ if- Organisms isolated from, all contaminated foads and water samples collected from water plants, taps 'water from, houses, resturantsr and coffe-houaes in the governorate was Nag. 5- Peak of Cholera was in May and November , This was mostly due to contaminated water and other drinks which is needed more in Summer . 6- Geographical distribution of Cholera, showa high, number of cases in urban and suburban areas than, in rural areaa . This appears to be attributed mainly tq poor hygiene . 7- Sex and Age distribution of cases shows: Male affacted more than Female . Male=60.7//o. , Female=39. 1/*. Prevalence of Cholera was more in age group (l-Jf)years , Low prevalence of Cholera (below 1year) f 3- Carriers : was less than cases in all years High prevalence in Male than Female . Male=55-4//f*Feinale=. if5. High prevalence in age group more than 5year .Low prevalence below one year . 9- Case fatality rate among hospitalized cases was 1.1# , 10- 21893 stool samples from health centers (diarrheal cases), examined for V. cholera and there was 257 positive samples .. 11- 2l6/t water specimens from water plants ,houses,resturant, coffe-houses tested for V» cholera ,. there was 17 samples contaminated with Nag. . 12- 6kO food samples collected from resturants tested for Cholera , 12 samples was contaminated with Nag .