ABSTRACT
An epidemiological survey on cholera was made toward the 291 cases admitted in Pusan National University Hospital. The results were as follows. 1. The most predominant age groups among all cholera patients were form 30 to 39(21.3%). 2. 74.9% of all cases got under the educational background of primary school and 69.4% of all cases occurred at the low income group. 3. Daily average numbers of patient were 6.2 and maximum numbers were 15, August 19, 1970. 4. Among the food eaten prior to onset, drinking water was the most predominant with 16.2% and next, food and noodle groups were 14.8% and 10.3% respectively. 5. Regarding incubation period, it was found that "within 48 hours" was 83 5%. 6. Patients occurred mainly in Suh Ku area with 105(36.1%) of all closes. 7. Carrie rates among family members were 1.78%. 8. Carrier rates among residents of epidemic area were 0.l2%.