Epidemiological characteristics of hand, foot and mouth disease in Songzi City, 2017-2020
XIAO Feng1, LIU Tian2, OUYANG Sheng1
1. Songzi Municipal Center for Disease Control and Prevention, Songzi, Hubei 434200, China; 2. Jingzhou Municipal Center for Disease Control and Prevention, Jingzhou, Hubei 434000, China
Abstract：Objective To understand the epidemiological features of hand, foot and mouth disease (HFMD) in Songzi City from 2017 to 2020, and to put forward prevention and control suggestions. Methods Case information, etiological surveillance data and aggregated epidemic information about HFMD in Songzi City during 2017-2020 were collected and analyzed. Results From 2017 to 2020, 2,992 cases of HFMD were reported in Songzi City, and the cases under 5 years old accounted for 92.75% of the total cases. The incidence of HFMD in Songzi City showed obvious seasonality, with two peaks from April to July and from November to January of the next year. 46 clusters were reported, all of which occurred in child-care institutions, mainly in rural nurseries. 246 cases were accumulatively sampled and detected in sentinel hospitals during the study period, with a positive rate of 80.66%. The main pathogens were other enterovirus (75.20%, 185/246) and Cox A16 (21.54%, 53/246). The results of cross-sectional survey in 2019-2020 displayed that 817 cases were accumulatively sampled and detected, and 743 were positive, with a positive rate of 90.94%, including 1 case of EV71 (0.12%), 295 cases of Cox A16 (36.11%), 259 cases of Cox A6 (31.70%), 33 cases of Cox A10 (4.04%) and 155 cases of other common enteric viruses (18.97%). Conclusion The reported incidence of HFMD fluctuated periodically for 4 consecutive years, and children under 5 years old were the main incidence group. Kindergartens should strictly implement the relevant prevention and control regulations of HFMD and strengthen health education about hand hygiene in preschoolers so as to effectively control the epidemic of HFMD.
2022, Vol. 29 
