Ekdahl Karl, Andersson Yvonne
Department of Epidemiology, Swedish Institute for Infectious Disease Control, Solna, Sweden.
Am J Trop Med Hyg. 2005 Jun;72(6):825-30.
From the Swedish national database, regarding notified Giardia cases, we could for the period 1997-2003 identify 3,697 cases of travel-associated giardiasis, 4,151 cases in newly arrived immigrants and refugees, and 455 cases in internationally adopted children. These were compared with data sets on the number of international travelers, immigrants/refugees, and adopted children. The overall risk of being notified with giardiasis in returning travelers was 5.3 of 100,000, with the highest incidences in travelers from the Indian Subcontinent (628 of 100,000), East Africa (358 of 100,000), and West Africa (169 of 100,000). A large proportion of the travel-related cases were seen in persons with family roots in the country of infection-a risk group deserving special attention. The overall risk in immigrants and refugees was 1,180/100,000 with the highest risk in persons from Afghanistan (3,800 of 100,000) and Iraq (2,990 of 100,000). The incidence was highest among internationally adopted children (8,110 of 100,000), with geographical risks not entirely correlating to those in travelers and immigrants.
从瑞典国家数据库中关于已通报的贾第虫病例的数据来看，在1997年至2003年期间，我们识别出3697例与旅行相关的贾第虫病病例、4151例新抵达的移民和难民中的病例以及455例国际收养儿童中的病例。这些病例数与国际旅行者、移民/难民以及收养儿童的数量数据集进行了比较。回国旅行者中被通报感染贾第虫病的总体风险为十万分之5.3，其中来自印度次大陆的旅行者发病率最高（十万分之628），其次是东非（十万分之358）和西非（十万分之169）。很大一部分与旅行相关的病例出现在其家族根源在感染国的人群中，这是一个值得特别关注的风险群体。移民和难民中的总体风险为十万分之1180，其中来自阿富汗的人风险最高（十万分之3800），其次是伊拉克（十万分之2990）。国际收养儿童中的发病率最高（十万分之8110），其地理风险与旅行者和移民中的风险并不完全相关。
