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Respiratory Syncytial Virus, or RSV, is a highly contagious seasonal respiratory virus that can infect people of all ages.
呼吸道合胞病毒（RSV）是一种具有高度传染性的季节性呼吸道病毒，可感染所有年龄段的人。
Nearly 100 percent of all children will be infected with RSV by the time they reach 2 years of age.
到2岁时，几乎100%的儿童都会感染过呼吸道合胞病毒。
Most people, including infants, develop mild symptoms like that of a common cold: runny nose, cough and fever.
大多数人，包括婴幼儿，会出现像普通感冒一样的轻微症状：流鼻涕、咳嗽和发烧。
Typically, these symptoms subside within a week or two.
这些症状通常会在一两周内消退。
However, RSV is unpredictable, and can be severe and even life-threatening.
但呼吸道合胞病毒是不可预测的，可能会很严重，甚至危及生命。
Any infant could be hospitalized during their first RSV season.
任何婴幼儿都可能在他们的第一个呼吸道合胞病毒传染季住院。
Infants younger than six months of age do not have a strong immune system, and are at highest risk of developing severe RSV disease.
6个月以下的婴幼儿因为免疫系统不强，发生严重呼吸道合胞病毒疾病的风险最高。
Symptoms of severe illness include: trouble breathing, poor appetite, decreased activity levels, and severe cold symptoms, and a shallow cough that continues throughout the day and night.
严重疾病的症状包括：呼吸困难、食欲不振、活动量下降、感冒症状严重和持续昼夜的浅咳嗽。
You can help prevent RSV in your baby younger than six months by avoiding close contact with people infected with respiratory diseases,
你可以通过避免与感染呼吸道疾病的人密切接触，来帮助预防六个月以下婴幼儿患上呼吸道合胞病毒，
avoiding sharing cups or bottles, and washing your hands with soap and water often, especially after coming into contact with an infected person.
避免共用杯子或瓶子，经常用肥皂和水洗手，特别是在与感染者接触后。
Talk to your child's healthcare provider about RSV prevention and when to seek care if your child starts experiencing symptoms.
要与你孩子的医疗保健服务提供者沟通呼吸道合胞病毒的预防，以及如果你的孩子开始出现症状该何时寻求护理。
