Abstract：
BACKGROUND: Acute schistosomiasis occurs most often in travelers to endemic regions. The aim of the study is to describe the epidemiological, clinical and parasitological characteristics of patients with schistosomiasis acquired during an international travel.
METHODS: Observational retrospective study including all travel-related schistosomiasis cases seen at the International Health Unit Vall d\'Hebron-Drassanes (Barcelona, Spain) from 2009 to 2022. Diagnosis of schistosomiasis was defined by the presence of Schistosoma eggs in stools or urine or the positivity of a serological test. We collected demographic, epidemiological, clinical, parasitological, and therapeutic information.
RESULTS: 917 cases of schistosomiasis were diagnosed, from whom 96 (10.5 %) were travel-related. Mean age of the patients was 34.9 years, and 53.1 % were women. Median duration of the travel was 72 days, and geographical areas where travelers had contact with fresh water were Africa (82.3 %), Asia (12.5 %), and South America (5.2 %). Twenty (20.8 %) patients reported having had some clinical symptom, being gastrointestinal symptoms the most frequent. Two patients developed the classical Katayama syndrome. In eleven (11.5 %) cases eggs were observed in urine or feces samples, and 85 (88.5 %) cases were diagnosed by a positive serology. Ninety-one (94.8 %) patients received treatment with praziquantel with different therapeutic schemes. The two patients with Katayama syndrome received concomitant treatment with corticosteroids.
CONCLUSIONS: Schistosomiasis in travelers represented 10 % of the overall schistosomiasis cases in our center. Increasing the awareness in the pre-travel advice and implementing specific screening in those travelers at risk (long travelers, contact with fresh water) could reduce the incidence and associated morbidity in this group.
METHODS: Observational retrospective study including all travel-related schistosomiasis cases seen at the International Health Unit Vall d\'Hebron-Drassanes (Barcelona, Spain) from 2009 to 2022. Diagnosis of schistosomiasis was defined by the presence of Schistosoma eggs in stools or urine or the positivity of a serological test. We collected demographic, epidemiological, clinical, parasitological, and therapeutic information.
RESULTS: 917 cases of schistosomiasis were diagnosed, from whom 96 (10.5 %) were travel-related. Mean age of the patients was 34.9 years, and 53.1 % were women. Median duration of the travel was 72 days, and geographical areas where travelers had contact with fresh water were Africa (82.3 %), Asia (12.5 %), and South America (5.2 %). Twenty (20.8 %) patients reported having had some clinical symptom, being gastrointestinal symptoms the most frequent. Two patients developed the classical Katayama syndrome. In eleven (11.5 %) cases eggs were observed in urine or feces samples, and 85 (88.5 %) cases were diagnosed by a positive serology. Ninety-one (94.8 %) patients received treatment with praziquantel with different therapeutic schemes. The two patients with Katayama syndrome received concomitant treatment with corticosteroids.
CONCLUSIONS: Schistosomiasis in travelers represented 10 % of the overall schistosomiasis cases in our center. Increasing the awareness in the pre-travel advice and implementing specific screening in those travelers at risk (long travelers, contact with fresh water) could reduce the incidence and associated morbidity in this group.
摘要：
背景：急性血吸虫病最常发生在到流行地区的旅行者中。这项研究的目的是描述流行病学，在国际旅行中获得的血吸虫病患者的临床和寄生虫学特征。
方法：观察性回顾性研究，包括在国际卫生单位Valld'Hebron-Drassanes（巴塞罗那，西班牙）从2009年到2022年。血吸虫病的诊断是通过粪便或尿液中血吸虫卵的存在或血清学测试的阳性来定义的。我们收集了人口统计，流行病学,临床,寄生虫学,和治疗信息。
结果：917例血吸虫病确诊，其中96人(10.5%)与旅行相关。患者的平均年龄为34.9岁,53.1%为女性。行程的中位数为72天，旅行者接触淡水的地理区域是非洲(82.3%)，亚洲（12.5%），和南美洲（5.2%）。20名(20.8%)患者报告有一些临床症状，胃肠道症状最常见。两名患者发展为经典的片山综合征。在11例(11.5%)尿液或粪便样本中观察到鸡蛋，血清学阳性诊断85例（88.5％）。91例（94.8％）患者接受了不同治疗方案的吡喹酮治疗。两名Katayama综合征患者同时接受皮质类固醇治疗。
结论：旅行者中的血吸虫病占我们中心总血吸虫病病例的10％。提高旅行前建议的意识，并对那些有风险的旅行者(长期旅行者，与淡水接触）可以降低该组的发病率和相关发病率。
方法：观察性回顾性研究，包括在国际卫生单位Valld'Hebron-Drassanes（巴塞罗那，西班牙）从2009年到2022年。血吸虫病的诊断是通过粪便或尿液中血吸虫卵的存在或血清学测试的阳性来定义的。我们收集了人口统计，流行病学,临床,寄生虫学,和治疗信息。
结果：917例血吸虫病确诊，其中96人(10.5%)与旅行相关。患者的平均年龄为34.9岁,53.1%为女性。行程的中位数为72天，旅行者接触淡水的地理区域是非洲(82.3%)，亚洲（12.5%），和南美洲（5.2%）。20名(20.8%)患者报告有一些临床症状，胃肠道症状最常见。两名患者发展为经典的片山综合征。在11例(11.5%)尿液或粪便样本中观察到鸡蛋，血清学阳性诊断85例（88.5％）。91例（94.8％）患者接受了不同治疗方案的吡喹酮治疗。两名Katayama综合征患者同时接受皮质类固醇治疗。
结论：旅行者中的血吸虫病占我们中心总血吸虫病病例的10％。提高旅行前建议的意识，并对那些有风险的旅行者(长期旅行者，与淡水接触）可以降低该组的发病率和相关发病率。
