自1962年在孟加拉达卡医院建立国际腹泻研究中心,对病人实行免费收治后,仅在1970～1980年间,每年就医人数增多至1～10万人,约为过去的10倍。鉴于收集全部病人资料的困难性,1979年10月,在该院建立了一个监测系统。选定一些每年来院就检的病人,并对检材的流行病学、临床和实验室特征进行研究,尤其对市区患者的病原组成 Since the establishment of the International Diarrhea Research Center at Dhaka Hospital in Bangladesh in 1962 and the free treatment of patients, the number of people enrolled in medical care has increased from 10 to 100 000 annually between 1970 and 1980, about 10 times that of the past. In view of the difficulty of collecting all patient information, a monitoring system was established in the hospital in October 1979. Selected patients who come to the hospital on an annual basis and conduct research on the epidemiological, clinical and laboratory characteristics of the samples, especially on the pathogenic components of urban patients