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Respiratory Syncytial Virus Symptoms

Respiratory syncytial virus (RSV) is a common respiratory infection that most children acquire before they turn two. It is the number one cause of bronchiolitis and pneumonia in babies, according to the Centers for Disease Control, but it can affect people of all ages.

  1. Incubation

    • Symptoms usually appear four to six days after exposure to RSV, according to Mayo Clinic.

    Common Symptoms

    • Nasal congestion, runny nose and a cough are common symptoms. A mild fever, headache, sore throat and decreased appetite may also be present. In older children and adults, RSV often resembles a mild cold.

    Severe Symptoms

    • Fever may be higher and coughing may be worse with severe infection. People with severe RSV may wheeze, breathe rapidly or have trouble breathing. Decreased oxygen can make the skin appear blue.

    Symptoms in Infants

    • Young babies may be irritable, lethargic and have difficulty breathing without any other symptoms, according to the CDC.

    Warning

    • RSV can be serious for young infants, premature babies and anyone with a heart or lung problem. Contact your doctor if a child or high-risk person has symptoms of RSV. If someone with RSV has difficulty breathing, turns blue or has a high fever, get medical help right away.

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