一、前言每年染有病毒性出血热——拉沙、马尔堡、埃波拉、克里米亚——刚果出血热——的旅行者都有可能进入美国。在美国公民中,护理非洲病人的卫生人员是最有可能接触这种疾病病原体的人。然而血清学的研究已说明,在非洲服务的、不经常接触病人的传教士和美国和平队队员也可能受感染。另外,旅行者也可能在进入美国时虽然感染了 I. Introduction Every year, travelers with viral hemorrhagic fever - Rasha, Marburg, Ebola, Crimea - Congo Hemorrhagic Fever - are likely to enter the United States. Among U.S. citizens, health workers caring for African patients are those most likely to be exposed to the disease. However, serological studies have shown that missionaries serving in Africa that do not contact the patient often and members of the United States Peace Corps may also become infected. In addition, travelers may also be infected while entering the United States