作者1979年于大阪检疫所对1,225,395名国外旅游者进行了检疫,对有腹泻症状患者中的819名进行了病原学检查。结果:(1)病原菌检出率为49.5%,其中沙门氏菌属128名(15.6%),肠炎弧菌118名(14.4%),痢疾杆菌29名(3.5%),不凝集弧菌22名(2.7%);产肠毒素性大肠杆菌从5月份开始检查,在被检查的602例 The author quarantined 1,225,395 foreign tourists at the Osaka Quarantine Office in 1979 and conducted an etiological examination of 819 of the patients with diarrhea symptoms. Results: (1) The detection rate of pathogens was 49.5%, of which 128 (15.6%) were Salmonella, 118 (14.4%) were Enterobacter Vulvomastia, 29 (3.5%) were Shigella and 22 %); Enterotoxigenic Escherichia coli began examination in May, were examined in 602 cases