A Case-control Study of Risk Sources for Severe Fever with Thrombocytopenia Syndrome in Hubei Province, China

作者：Xing, Xuesen^*; Guan, Xuhua; Liu, Li; Xu, Junqiang; Li, Guoming; Zhan, Jianbo; Liu, Gongping; Jiang, Xiaoqing; Shen, Xingfu; Jiang, Yongzhong; Wu, Yang; Zhang, Hao; Huang, Jing; Ding, Fan; Sha, Sha; Liu, Man; Zhan, Faxian

来源：International Journal of Infectious Diseases, 2017, 55: 86-91.

DOI：10.1016/j.ijid.2017.01.003

• case-control
• severe fever with thrombocytopenia
• syndrome
• risk factors
• tick exposure
• cattle tick
• endemic

Background: Severe fever with thrombocytopenia syndrome (SFTS), an emerging infectious disease caused by a novel bunyavirus, was discovered in rural areas of Central China in 2009. @@@ Methods: A case-control study based on hospital data was applied to detect the potential risk sources for SFTS in SFTS-endemic counties in Hubei Province. Cases were defined as hospitalized SFTSV confirmed patients. Controls were randomly selected from non-SFTSV patients in the same hospital ward within 2 weeks of inclusion of the cases, and they were matched by age (+/- 5 years) and gender according to 1: 2 matching condition. @@@ Results: 68 cases and 136 controls participated in this study. In multivariate analysis, "Contact with cattle tick" was the major risk source (Conditional Logistic Regression OR-MH = 8.62, 95% CI = 1.79-41.51), outdoor activities and working in weeds or hillside fields could increase risk of cattle tick contact and SFTS infection (Conditional Logistic Regression OR-MH = 8.82, 95% CI = 1.69-46.05, P value = 0.01). @@@ Conclusion: Our results suggested cattle might be dominant hosts in SFTS-endemic regions in Hubei Province, which provided clues to transmission mechanism of "vectors, host animals, and humans", thus more effectively preventing and controlling the disease.

• 出版日期2017-2
• 单位中国疾病预防控制中心; 湖北省疾病预防控制中心