作者报告一例瑞典人在肯尼亚旅游回国后恶性疟复燃,治疗的同时测定了血清内的氯喹浓度。患者男性,60岁。以往除有几次心律不齐和轻度高血压外,健康情况良好。旅游期间至入院前曾定期服用乙胺嘧啶25mg,每周2次,以预防疟疾。回国后11天突然寒颤、发热,症状发作2天住院,测体温40℃,神志清,能合作。血涂片红细胞原虫率为 The authors report a case of falciparum malaria after Swedes returned from tourism in Kenya and measured the serum concentrations of chloroquine in the treatment. Male patient, 60 years old. In the past except for a few irregular heartbeat and mild hypertension, good health. During the tour to hospital before taking regular pyrimethamine 25mg, 2 times a week to prevent malaria. 11 days after returning suddenly chills, fever, the onset of symptoms 2 days hospitalized, measured body temperature 40 ℃, conscious clear, can cooperate. Blood smear erythrocytic protozoa rate