Foodborne parasitic diseases in China: A scoping review on current situation, epidemiological trends, prevention and control
Langui Song1, Qingxing Xie2, Zhiyue Lv2
1 The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
2 Key Laboratory of Tropical Translational Medicine of Ministry of Education; NHC Key Laboratory of Control of Tropical Diseases, The First Affiliated Hospital, Hainan Medical University, Haikou; Key Laboratory of Tropical Disease Control, Sun Yat-sen University, Ministry of Education, Guangzhou, China
The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong
Key Laboratory of Tropical Translational Medicine of Ministry of Education; NHC Key Laboratory of Control of Tropical Diseases, The First Affiliated Hospital, Hainan Medical University, Haikou; Key Laboratory of Tropical Disease Control, Sun Yat-sen University, Ministry of Education, Guangzhou
Source of Support: This work was supported by the Major Science and Technology Program of Hainan Province (Grant No. ZDKJ202003), Grants from the Key Research and Development Program of Hainan Province (Grant No. ZDYF2020120), the National Natural Science Foundation of China (Grant Nos. 81572023 and 81371836), the Guangdong Natural Science Foundation (Grant No. 2019A1515011541), the Science and Technology Planning Project of Guangdong Province (Grant No. 2019B030316025), the National Parasitic Resources Center of China (Grant No. NPRC-2019-194-30), the Open Foundation of Key Laboratory of Tropical Translational Medicine of the Ministry of Education, Hainan Medical University (Grant No. 2020TTM007), the 111 Project (Grant No. B12003), and the Teaching Reform Project of Guangdong Province (Grant No. 2017001), Conflict of Interest: None
Objective: Foodborne parasitic diseases, although with a declining overall incidence rate, are still endangering local public safety. This review aims to describe the current situation and epidemiological trends of foodborne parasitic diseases in China in order to explore possible reasons contributors to its high prevalence in some areas, and propose strategies for prevention and control accordingly.
Methods: A scoping review was conducted by searching PubMed, CNKI, Wanfang, CQVIP, Embase, and the Cochrane Library using search formula “foodborne parasitic diseases (or foodborne parasites)” AND “China”. Studies on foodborne parasitic diseases in China were considered, but only articles in English or Chinese published between January 1980 and June 2020 were retrieved. Included studies were screened according to the eligibility criteria: 1) diseases consistent with the WHO definition of foodborne parasitic diseases; 2) the food carriers were included in the WHO food classification; 3) data related to epidemiology, pathogenicity, and prevention and control; 4) Foodborne parasitic diseases cases or outbreaks in China.
Results: A total of 111 out of 665 records were included and summarized. The prevalence of clonorchiasis, angiostrongyliasis, echinococcosis, trichinellosis and cysticercosis was still increasing although the infection rate of soil-transmitted nematodes has substantially decreased in recent years. Diverse eating habits, close contact with animals, and urbanization were contributing factors to the increase.
Conclusions: Foodborne parasitic diseases remain an important public health issue in China with the progress of economic globalization and food diversification. We should manage to raise public awareness about the prevention and control of foodborne parasitic diseases, improve health and safety inspections, as well as public health practice.