Freedman B J
J Hyg (Lond). 1977 Aug;79(1):73-5. doi: 10.1017/s0022172400052864.
Of 485 persons who replied to a questionnaire after attending a European Congress in September 1974, diarrhoea was experienced by 4 of 143 British residents and 2 of 342 visitors to the United Kingdom. This extremely low incidence of travellers' diarrhoea contrasts with the high incidence reported in travellers from countries with cool climates and north European standards of hygiene to countries where these conditions do not hold.
在1974年9月参加一次欧洲大会后回复调查问卷的485人中，143名英国居民中有4人出现腹泻，342名来英国的访客中有2人出现腹泻。这种旅行者腹泻的极低发病率与从气候凉爽且有北欧卫生标准的国家前往不具备这些条件的国家的旅行者中所报告的高发病率形成对比。
