为探讨预防性服用强力霉素对旅游腹泻的预防效果,作者对美国和平部队去泰国旅游的63名志愿者(年龄22～70岁)进行随机双盲研究。在此之前的一次研究中,泰国旅游者腹泻的最常见病原为产肠毒素大肠杆菌 To explore the preventive effect of doxycycline prophylaxis on tourism diarrhea, the authors conducted a randomized, double-blind study of 63 volunteers (aged 22-70 years) traveling to Thailand by the U.S. Forces for Peace. In a previous study, the most common cause of diarrhea in Thai tourists was enterotoxigenic Escherichia coli