秋季儿童传染病高发，家长需掌握症状识别与就医指征

北京儿童医院感染内科医师冯文雅就秋季儿童传染病防控进行了专业解读。1根据中国疾控中心第41周监测数据，目前儿童高发的主要病原体为流感病毒（13.6%）、鼻病毒（11.2%）和肠道病毒（3.9%），此外还需关注手足口病、水痘等出疹性传染病。1其中，呼吸道合胞病毒（RSV）在初期症状表现似普通感冒，但6个月以下的小婴儿容易出现喘息、呼吸急促等严重表现；肺炎支原体常见于学龄儿童，且对青霉素类、头孢类抗菌药无效。1

居家护理中，家长需要重点关注体温之外的多项指标。1医师提醒，不能只看体温，应留意孩子的精神状态、呼吸频率、进食量和尿量等变化。1呼吸频率异常是重要预警信号，若2月龄以下婴儿呼吸≥60次/分、2个月到1岁≥50次/分、1岁到5岁≥40次/分，需及时就医。1特别地，小于3月龄的婴儿一旦发热应当及时就医。1

在传染病防控方面，诺如病毒患儿症状完全消失72小时后方可返校，成人症状消失后3天内应避免做饭和照顾婴幼儿。1预防诺如病毒传播不能仅依赖免洗酒精消毒液，应用肥皂和流动水洗手才能有效防护。1手足口病在秋季呈小高峰，高发月份为9—11月，5岁及以下儿童易感。1冯医师强调，做好手卫生、保持室内通风、及时进行疫苗接种等措施是预防传染病的关键。1

As fall arrives, childhood infectious diseases enter a high-transmission season. Dr. Feng Wenya, an attending physician in the Department of Infectious Diseases at Beijing Children's Hospital, has provided professional guidance on prevention and management. 1

According to China's disease control surveillance data for week 41, the most prevalent pathogens affecting children are influenza virus at 13.6%, rhinovirus at 11.2%, and enterovirus at 3.9%. 1 Respiratory syncytial virus (RSV) often presents with symptoms resembling the common cold initially, though infants under six months may develop wheezing and rapid breathing as illness progresses. 1 Mycoplasma pneumoniae infections are particularly common among school-age children and notably do not respond to penicillin or cephalosporin antibiotics. 1 Hand-foot-mouth disease experiences a secondary peak from September to November, with children five years and younger being most susceptible. 1

Recognizing warning signs is essential for timely intervention. Infants younger than three months with fever should receive immediate medical attention. 1 For older children, abnormal respiratory rates serve as a key indicator: rates of 60 breaths per minute or higher in infants under two months, 50 or higher between two months and one year, and 40 or higher between one and five years warrant medical evaluation. 1 Parents monitoring children at home should not rely solely on temperature readings; changes in mental alertness, breathing patterns, feeding, and urine output are equally important. 1

Prevention requires a multifaceted approach. Proper hand hygiene using soap and running water is crucial, particularly for controlling norovirus transmission, as alcohol-based sanitizers alone are insufficient. 1 Adequate ventilation and timely vaccination completion also form essential components of protection. 1 Children infected with norovirus should remain away from school for 72 hours after symptoms completely resolve, while infected adults should avoid food preparation and caring for infants for three days following symptom cessation. 1