Respiratory Syncytial Virus (RSV) Infection

Older, smiling man holding baby

Respiratory syncytial (sin-SISH-uhl) virus, or RSV, is a common respiratory virus that usually causes mild, cold-like symptoms. Most people recover in a week or two, but RSV can be serious, especially for infants and older adults. RSV is the most common cause of bronchiolitis (inflammation of the small airways in the lung) and pneumonia (infection of the lungs) in children younger than 1 year of age in the United States.

Symptoms & Care
Man sitting down and blows his nose into a tissue

Know the symptoms to look for and how to care for people with RSV.

Infants & Children
Mother touches sleeping infant

RSV can be dangerous for some infants and young children.

Woman coughing, standing in a city street

Help protect yourself and your loved ones from RSV infection.