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What is respiratory syncytial virus (RSV)?

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Respiratory syncytial virus (RSV) is a common, and very contagious, virus that infects the respiratory tract of most children before their second birthday.

For most babies and young children, the infection causes nothing more than a cold. But for a small percentage, infection with RSV can lead to serious problems such as bronchiolitis, which is inflammation of the small airways of the lungs, or pneumonia, which can become life-threatening.

From: Respiratory Syncytial Virus (RSV) WebMD Medical Reference

SOURCES:

Children's Hospital of Philadelphia: "Respiratory Syncytial Virus (RSV)."

CDC: "Respiratory Syncytial Virus Infection (RSV)."

KidsHealth: "About RSV."

March of Dimes: "RSV."

Reviewed by Dan Brennan on October 5, 2019

SOURCES:

Children's Hospital of Philadelphia: "Respiratory Syncytial Virus (RSV)."

CDC: "Respiratory Syncytial Virus Infection (RSV)."

KidsHealth: "About RSV."

March of Dimes: "RSV."

Reviewed by Dan Brennan on October 5, 2019

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What children are most at risk for severe infection from respiratory syncytial virus (RSV)?

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