Every year, between 10% and 40% of children get influenza, usually between November and March, but no season is completely safe.

Even the luckiest of these children often miss days of school, require physician visits, and experience complications such as middle ear infections, sinusitis, and pneumonia. Influenza is the cause of hospitalizations of 7000 infants and 26 000 toddlers each year; childhood deaths from influenza number from 46 to 288 annually. There are steps you can take to protect your child from influenza and its complications.

Some children face an especially high risk of serious complications from influenza. Infants and toddlers younger than 2 years as well as children with asthma, other forms of lung diseases, heart conditions, conditions that affect the brain or nervous system, obesity, and those receiving aspirin therapy or medicines to suppress the immune system are at high risk. Around half of children hospitalized with influenza are completely healthy with no risk factors at all.

每年，通常在11月至3月之间，每年有10％至40％的儿童会感染流感，但没有哪个季节是完全安全的。

这些孩子中即使是最幸运的孩子也经常缺课，需要看医生，并经历并发症，例如中耳感染，鼻窦炎和肺炎。每年，流感是导致7000名婴儿和26000名学步儿童住院的原因；每年因流感引起的儿童死亡人数从46到288。您可以采取一些措施来保护您的孩子免受流感及其并发症的影响。

一些儿童面临由流感引起的严重并发症的特别高的风险。2岁以下的婴幼儿以及患有哮喘，其他形式的肺部疾病，心脏病，影响大脑或神经系统的疾病，肥胖症以及接受阿司匹林疗法或抑制免疫系统药物的儿童处于高风险中。大约一半患流感住院的儿童完全健康，完全没有危险因素。