手足口病由肠道病毒感染引发，具有极强的传染性，低龄儿童为易感人群1。该病通过消化道、密切接触和飞沫三大途径传播，其中粪-口途径为核心传播方式1。由于常见肠道病毒有二十余种，儿童感染一种病毒后仅对该型别产生免疫，因此可能面临反复感染的风险1。
为有效阻断病毒传播，家长应落实多项防护措施1。具体包括饭前便后用流水洗手不少于20秒，每日通风2~3次且每次不少于30分钟，患病儿童应居家隔离，以及为6月龄至5岁儿童接种EVA71灭活疫苗1。当孩子出现持续高热、精神萎靡、肢体抖动或频繁呕吐等重症前兆症状时，需要立即就医1。
Hand, foot, and mouth disease is entering its high-incidence period, driven by infection with enteroviruses that spread rapidly through multiple transmission routes, particularly affecting young children 1. The disease transmits through three primary pathways: the digestive tract via fecal-oral contact as the core transmission method, close physical contact, and respiratory droplet transmission 1.
Health authorities have outlined four core prevention measures to control transmission 1. These include washing hands for at least 20 seconds before eating and after using the bathroom, maintaining indoor ventilation two to three times daily for no less than 30 minutes each time, keeping infected children isolated at home, and immunizing children through the inactivated EV71 vaccine 1. Vaccination with the inactivated EV71 vaccine is recommended for children aged 6 months to 5 years to ensure complete immunization 1.
Parents should be alert to warning signs of severe disease progression 1. These include persistent high fever, lethargy, tremoring of the limbs, and frequent vomiting, all of which warrant immediate medical attention 1. It is important to note that while there are more than 20 types of enteroviruses in circulation, infection with one type provides immunity only to that specific strain, meaning children may experience repeated infections 1.
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