Influence of the Enterovirus 71 Vaccine and the COVID-19 Pandemic on Hand, Foot, and Mouth Disease in China Based on Counterfactual Models: Observational Study

Abstract BackgroundHand, foot, and mouth disease (HFMD) is a highly contagious viral illness. Understanding the long-term trends of HFMD incidence and its epidemic characteristics under the circumstances of the enterovirus 71 (EV71) vaccination program and the outbreak of COVI...

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Main Authors: Jia Nie, Tian Huang, Yuhong Sun, Zutong Peng, Wenlong Dong, Jiancheng Chen, Di Zheng, Fuyin Guo, Wenhui Shi, Yuewei Ling, Weijia Zhao, Haijun Yang, Tiejun Shui, Xiangyu Yan
Format: Article
Language:English
Published: JMIR Publications 2024-12-01
Series:JMIR Public Health and Surveillance
Online Access:https://publichealth.jmir.org/2024/1/e63146
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author Jia Nie
Tian Huang
Yuhong Sun
Zutong Peng
Wenlong Dong
Jiancheng Chen
Di Zheng
Fuyin Guo
Wenhui Shi
Yuewei Ling
Weijia Zhao
Haijun Yang
Tiejun Shui
Xiangyu Yan
author_facet Jia Nie
Tian Huang
Yuhong Sun
Zutong Peng
Wenlong Dong
Jiancheng Chen
Di Zheng
Fuyin Guo
Wenhui Shi
Yuewei Ling
Weijia Zhao
Haijun Yang
Tiejun Shui
Xiangyu Yan
author_sort Jia Nie
collection DOAJ
description Abstract BackgroundHand, foot, and mouth disease (HFMD) is a highly contagious viral illness. Understanding the long-term trends of HFMD incidence and its epidemic characteristics under the circumstances of the enterovirus 71 (EV71) vaccination program and the outbreak of COVID-19 is crucial for effective disease surveillance and control. ObjectiveWe aim to give an overview of the trends of HFMD over the past decades and evaluate the impact of the EV71 vaccination program and the COVID-19 pandemic on the epidemic trends of HFMD. MethodsUsing official surveillance data from the Yunnan Province, China, we described long-term incidence trends and severity rates of HFMD as well as the variation of enterovirus proportions among cases. We conducted the autoregressive integrated moving average (ARIMA) of time series analyses to predict monthly incidences based on given subsets. The difference between the actual incidences and their counterfactual predictions was compared using absolute percentage errors (APEs) for periods after the EV71 vaccination program and the COVID-19 pandemic, respectively. ResultsThe annual incidence of HFMD fluctuated between 25.62 cases per 100,000 people in 2008 and 221.52 cases per 100,000 people in 2018. The incidence for men ranged from 30 to 250 cases per 100,000 people from 2008 to 2021, which was constantly higher than that for women. The annual incidence for children aged 1 to 2 years old ranged from 54.54 to 630.06 cases per 100,000 people, which was persistently higher than that for other age groups. For monthly incidences, semiannual peaks were observed for each year. All actual monthly incidences of 2014 to 2015 fell within the predicted 95% CI by the ARIMA(1,0,1)(1,1,0)[12] model. The average APE was 19% for a 2-year prediction. After the EV71 vaccination program, the actual monthly incidence of HFMD was consistently lower than the counterfactual predictions by ARIMA(1,0,1)(1,1,0)[12], with negative APEs ranging from −11% to −229% from January 2017 to April 2018. In the meantime, the proportion of EV71 among the enteroviruses causing HFMD decreased significantly, and the proportion was highly correlated (rP ConclusionsEV71 vaccination alleviated severe HFMD cases and altered epidemiological trends. The HFMD may also benefit from nonpharmaceutical interventions during outbreaks such as the COVID-19 pandemic. Further development of a multivalent virus vaccine is crucial for effectively controlling HFMD outbreaks. Policymakers should implement nonpharmaceutical interventions and emphasize personal hygiene for routine prevention when appropriate.
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spelling doaj-art-de43512cdbea4991b832f808bf7860092024-12-30T11:18:31ZengJMIR PublicationsJMIR Public Health and Surveillance2369-29602024-12-0110e63146e6314610.2196/63146Influence of the Enterovirus 71 Vaccine and the COVID-19 Pandemic on Hand, Foot, and Mouth Disease in China Based on Counterfactual Models: Observational StudyJia Niehttp://orcid.org/0000-0001-9393-482XTian Huanghttp://orcid.org/0000-0002-0512-6791Yuhong Sunhttp://orcid.org/0009-0002-2401-5920Zutong Penghttp://orcid.org/0009-0002-0804-3921Wenlong Donghttp://orcid.org/0009-0004-3547-7914Jiancheng Chenhttp://orcid.org/0009-0004-7297-7037Di Zhenghttp://orcid.org/0009-0002-4905-4176Fuyin Guohttp://orcid.org/0009-0009-1847-4099Wenhui Shihttp://orcid.org/0009-0006-0009-8820Yuewei Linghttp://orcid.org/0000-0001-7724-5370Weijia Zhaohttp://orcid.org/0009-0005-3461-3037Haijun Yanghttp://orcid.org/0009-0007-0327-4532Tiejun Shuihttp://orcid.org/0000-0002-2224-0545Xiangyu Yanhttp://orcid.org/0000-0002-1496-0358 Abstract BackgroundHand, foot, and mouth disease (HFMD) is a highly contagious viral illness. Understanding the long-term trends of HFMD incidence and its epidemic characteristics under the circumstances of the enterovirus 71 (EV71) vaccination program and the outbreak of COVID-19 is crucial for effective disease surveillance and control. ObjectiveWe aim to give an overview of the trends of HFMD over the past decades and evaluate the impact of the EV71 vaccination program and the COVID-19 pandemic on the epidemic trends of HFMD. MethodsUsing official surveillance data from the Yunnan Province, China, we described long-term incidence trends and severity rates of HFMD as well as the variation of enterovirus proportions among cases. We conducted the autoregressive integrated moving average (ARIMA) of time series analyses to predict monthly incidences based on given subsets. The difference between the actual incidences and their counterfactual predictions was compared using absolute percentage errors (APEs) for periods after the EV71 vaccination program and the COVID-19 pandemic, respectively. ResultsThe annual incidence of HFMD fluctuated between 25.62 cases per 100,000 people in 2008 and 221.52 cases per 100,000 people in 2018. The incidence for men ranged from 30 to 250 cases per 100,000 people from 2008 to 2021, which was constantly higher than that for women. The annual incidence for children aged 1 to 2 years old ranged from 54.54 to 630.06 cases per 100,000 people, which was persistently higher than that for other age groups. For monthly incidences, semiannual peaks were observed for each year. All actual monthly incidences of 2014 to 2015 fell within the predicted 95% CI by the ARIMA(1,0,1)(1,1,0)[12] model. The average APE was 19% for a 2-year prediction. After the EV71 vaccination program, the actual monthly incidence of HFMD was consistently lower than the counterfactual predictions by ARIMA(1,0,1)(1,1,0)[12], with negative APEs ranging from −11% to −229% from January 2017 to April 2018. In the meantime, the proportion of EV71 among the enteroviruses causing HFMD decreased significantly, and the proportion was highly correlated (rP ConclusionsEV71 vaccination alleviated severe HFMD cases and altered epidemiological trends. The HFMD may also benefit from nonpharmaceutical interventions during outbreaks such as the COVID-19 pandemic. Further development of a multivalent virus vaccine is crucial for effectively controlling HFMD outbreaks. Policymakers should implement nonpharmaceutical interventions and emphasize personal hygiene for routine prevention when appropriate.https://publichealth.jmir.org/2024/1/e63146
spellingShingle Jia Nie
Tian Huang
Yuhong Sun
Zutong Peng
Wenlong Dong
Jiancheng Chen
Di Zheng
Fuyin Guo
Wenhui Shi
Yuewei Ling
Weijia Zhao
Haijun Yang
Tiejun Shui
Xiangyu Yan
Influence of the Enterovirus 71 Vaccine and the COVID-19 Pandemic on Hand, Foot, and Mouth Disease in China Based on Counterfactual Models: Observational Study
JMIR Public Health and Surveillance
title Influence of the Enterovirus 71 Vaccine and the COVID-19 Pandemic on Hand, Foot, and Mouth Disease in China Based on Counterfactual Models: Observational Study
title_full Influence of the Enterovirus 71 Vaccine and the COVID-19 Pandemic on Hand, Foot, and Mouth Disease in China Based on Counterfactual Models: Observational Study
title_fullStr Influence of the Enterovirus 71 Vaccine and the COVID-19 Pandemic on Hand, Foot, and Mouth Disease in China Based on Counterfactual Models: Observational Study
title_full_unstemmed Influence of the Enterovirus 71 Vaccine and the COVID-19 Pandemic on Hand, Foot, and Mouth Disease in China Based on Counterfactual Models: Observational Study
title_short Influence of the Enterovirus 71 Vaccine and the COVID-19 Pandemic on Hand, Foot, and Mouth Disease in China Based on Counterfactual Models: Observational Study
title_sort influence of the enterovirus 71 vaccine and the covid 19 pandemic on hand foot and mouth disease in china based on counterfactual models observational study
url https://publichealth.jmir.org/2024/1/e63146
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