Review
A review on the epidemiology of severe fever with thrombocytopenia syndrome
Li Jiachen, Wang Yuna, Zhao Jing, Li Hao, Liu Wei
Published 2021-12-10
Cite as Chin J Epidemiol, 2021, 42(12): 2226-2233. DOI: 10.3760/cma.j.cn112338-20210529-00439
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne infectious disease discovered in the 21st century. This disease has been reported in several Asian countries, including China, Japan, South Korea, Vietnam, and Myanmar. Until 2019, SFTS cases have been reported in 25 provinces in China, and most of them were rural residents from mountains and hilly regions. Most SFTS cases were sporadic but geographically concentrated, mainly in Henan, Shandong, Anhui, Hubei, Liaoning, Zhejiang, and Jiangsu provinces. SFTSV infection was transmitted predominantly by a tick bite and potentially through close contact with the patient's blood or body fluids. Fever, gastrointestinal symptoms, thrombocytopenia, and leukopenia were common initial manifestations, and multiple organ failure or even death could occur in severe cases. The reported cases of SFTS have been gradually increasing, and the case fatality rate has remained at a high level, posing a severe threat to public health in China. This paper reviewed the epidemiological features, risk factors for disease transmission, and the clinical characteristics of SFTS to gain further knowledge of the disease, guide the prevention and management, and help reduce the case fatality rate.
Key words:
Severe fever with thrombocytopenia syndrome; Epidemiological feature; Risk factor
Contributor Information
Li Jiachen
State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
Wang Yuna
State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
Zhao Jing
State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
Li Hao
State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Diseases, Beijing 100071, China
Liu Wei
State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Diseases, Beijing 100071, China