Core Points - Norovirus infection is a common intestinal infectious disease, particularly prevalent from October to March, especially in crowded places like schools and childcare institutions [1] - The infection has a short incubation period of 12 to 72 hours, with symptoms including nausea, vomiting, fever, abdominal pain, and diarrhea [1] - The virus is highly contagious, primarily transmitted through contaminated food, water, and contact with infected individuals [1] Group 1: Prevention in Educational Institutions - Timely detection and management of cases are crucial; institutions should monitor student health and report unusual increases in symptoms to health authorities [3] - Ensuring safe drinking water and food hygiene is essential, including regular checks and disinfection of water supply systems and proper food handling practices [3] - Health management for staff, such as cooks and caregivers, is necessary to prevent the spread of the virus [3] Group 2: Environmental and Personal Hygiene Measures - Proper handling of vomit and feces by trained personnel is vital to prevent contamination [4] - Public education on norovirus prevention should be conducted through various platforms to promote good hygiene practices [4] - Individuals and families should maintain hand hygiene, ensure food and water safety, and isolate infected individuals to minimize transmission [6]

诺如病毒感染潜伏期为12~72小时，通常为24~48小时。常见症状主要为恶心、呕吐、发热、腹痛 和腹泻，部分患者有头痛、畏寒和肌肉酸痛等。儿童以呕吐为主，成人则腹泻居多，粪便为稀水便或水 样便。 人民网北京10月20日电 （记者郝帅）据国家疾控局官方公众号消息，诺如病毒感染是一种常见的 肠道传染病，属于丙类传染病中的其他感染性腹泻病。每年10月到次年3月是诺如病毒感染高发季节， 学校和托幼机构等人群聚集场所是诺如病毒感染疫情高发场所。 二是加强饮水和食品卫生的管理。提供安全饮用水，做好饮用水管理，对饮用水供水管网的破损、 渗漏情况等进行排查，对二次供水设施定期清洗、消毒，做好饮用水水质检测，确保供水安全。做好食 品原料和加工环节的监管，注意生熟分开，彻底煮熟煮透。 三是加强厨工、保育员等从业人员健康管理。托幼机构和学校对厨工、保育员健康状况监测，出现 腹泻、呕吐、恶心等肠道传染病相关症状时，应立即暂停工作，及时就医，杜绝带病上班。制作食物和 配餐过程中佩戴口罩和做好手卫生。 四是做好环境清洁消毒。对校区/园区公共场所（如教室、宿舍、食堂、图书馆、卫生间等）定期 清洁与通风，对重点部位（如门把手、楼梯扶手、水龙 ...