Journal of Tropical Diseases and Parasitology ›› 2023, Vol. 21 ›› Issue (4): 191-194,215.doi: 10.3969/j.issn.1672-2302.2023.04.003

• SPECIALARTICLES FOR HAND, FOOTAND MOUTH DISEASE PREVENTION AND CONTROL • Previous Articles     Next Articles

Analysis of epidemiological characteristics of hand, foot and mouth disease in Xinjiang Uygur Autonomous Region from 2018 to 2022

NIGEDELI Alitengsaier(), ZHANG Xuan, CHEN Yuan, LI Quanxi, HUNDEZI Awuxi, ZHAO Jun, HUANG Ruifang, MA Xin()   

  1. The Center for Disease Control and Prevention of Xinjang Uygur Autonomous Region, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • Received:2023-06-30 Online:2023-08-20 Published:2023-08-23
  • Contact: MA Xin E-mail:3610790371@qq.com;369819211@qq.com

Abstract:

Objective To analyze the epidemiological characteristics of hand, foot and mouth disease (HFMD) in Xinjiang for scientific evidence for local HFMD prevention and control. Methods The data on HFMD reported in Xinjiang from 2018 to 2022 were collected through the China Disease Prevention and Control Information System, and pathogenetic data were obtained from the CDCs in various regions. Descriptive epidemiology was used to analyze the characteristics of distribution in time, region and population as well as the prevalent pathogens of HFMD in Xinjiang. Results A total of 22 817 cases of HFMD were cumulatively reported in Xinjiang area from 2018 to 2022, including 11 severe cases. No death occurred. The average incidence rate was 18.69/100 000, and the incidence rate reported in previous years ranged from 1.52/100 000 to 42.90/100 000. In 2018, 2019 and 2021, the incidence of HFMD represented bimodal distribution with two peaks from May to July and September to November, respectively. There was no peak incidence throughout 2020. Only one peak incidence (April-July) was seen in 2022. Both the number of reported cases and average incidence rate were higher in males than in females (13 587 cases, 22.64/100 000 vs. 9 230 cases, 15.48/100 000). Children aged 5 years and under were the main group of people suffering from the disease (18 736 cases, 82.11%). Among different occupations, the highest number of cases was reported in children in nurseries and kindergartens (10 386 cases, 45.52%), followed in children living at home (9 703 cases, 42.53%) and students (2 379 cases, 10.43%). The incidence rates of Karamay City, Bortala Mongolian Autonomous Prefecture and Tacheng area ranked the top three in the whole autonomous region. Among the 4 350 laboratory diagnosed cases, the proportions of enterovirus A71 (EV-A71), coxasckievirus A16 (CV-A16), and other enteroviruses were 5.22% (227/4 350), 25.59% (1 113/4 350), and 69.20% (3 010/4 350), respectively, with other enteroviruses being the main pathogen type responsible for the most severe cases. Conclusion The incidence of HFMD in Xinjiang area is generally on a downward trend. Other enteroviruses have replaced EV-A71 and CV-A16 as the main pathogens. Our findings suggest that implementation of control measures and strengthening pathogen surveillance are particularly important for the prevention and control of HFMD in Xinjiang.

Key words: Hand, foot and mouth disease, Epidemiological characteristics, Etiological characteristics, Xinjiang Uygur Autonomous Region

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