They found that all babies in the study were at increased risk if they had bronchiolitis, a lung infection usually caused by respiratory syncytial virus or RSV.

他们发现研究中的所有婴儿，如果患了小儿毛细支气管炎，是一种肺部感染，通常是由于呼吸道合胞病毒感染RSV，患哮喘的机率也升高。

youdao

It is a viral illness and the most common cause is the Respiratory Syncytial Virus (RSV).

它是一种病毒疾病，最常见的原因是呼吸道合胞病毒。

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The immune paralysis appeared to be specifically a result of influenza infection and was not seen in patients with respiratory syncytial virus.

免疫瘫痪似乎只是流感感染的结果，在感染呼吸道合胞体病毒的病人中没有发现。

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For instance, the American Association of Pediatrics recently changed its recommendations for the treatment of respiratory syncytial virus (RSV), a potentially deadly respiratory infection that afflicts half of all infants during their first year of life and almost all by the end of year two.

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