서울시 일부 영세민 지역에서 발생한 설사증 유행에 관한 역학적 조사

Abstract

From April 24 to June 4, 1979, an outbreak of diarrheal illness was observed in an urban slum area in SeouL For the purpose of elucidation of the causal mechanism of the causative agent and the mode of transmission in this outbreak, the authors tried an epidemiological investigation. Following conclusions are drawn: L By questionnaire survey 97 cases with diarrheal illness were detected. In three among seven diarrheal cases whose stool specimen could be collected, Shigella flexneri was confirmed by microbiological examination. 2. This illness was clinically characterized by dlarrhea, tenesmus, abdominal cramp and fever. Median duration of illness in the detected cases was five days. 3. Incidence rate in surveyed population was 6.7 %. Especially, incidence rate of 0~4 year age group was extremely high as 29.3%. Incidence rate by sex was not significantly different. 4. Incidence rate was 9.1% in population using simple piped water supply system. Difference of incidence rate between these two groups was highly significant (p<O.OO. Conclusively, simple piped water supply system played an important role as common vehicle in the outbreak of this diarrheal illness.