UNC Health Care
A photograph of a child using a breathing apparatus.

What You Need to Know About RSV

RSV, or respiratory syncytial virus, is a common viral infection that affects nearly all kids before age 2. Although more widespread in babies and young children, RSV can occur at any age.

For most healthy children and adults, RSV is like a cold and they recover fully. But it can be dangerous for young infants, especially those born prematurely or with weakened immune systems, and for children and adults with chronic respiratory conditions such as asthma or a lung disease. In the United States, an estimated 57,000 children younger than 5 are hospitalized each year because of RSV infection.

Most people recover from RSV in a week. However, RSV can cause bronchiolitis (inflammation of the small airways in the lungs) and pneumonia (infection of the lungs), especially in children younger than 1. It can also cause these serious respiratory illnesses in older adults.

Symptoms of RSV

UNC pediatrician Ricardo Baler, MD, says RSV season usually occurs from December to February. The illness often starts with the symptoms of a common cold:

  • Congestion or runny nose
  • Decreased appetite
  • Coughing
  • Sneezing
  • Fever
  • Headache (irritability in younger children)
  • Wheezing
  • Sore throat

“It usually starts as a cold with a runny nose, nasal congestion and cough, and by day three or four the patient may have some wheezing and symptoms or signs of respiratory distress,” Dr. Baler says. “They may not be able to eat because their respiratory rate is elevated, and they have trouble breathing.”

Infants younger than 6 months have the same symptoms as older babies and adults, but theirs are more severe because their airways are smaller, Dr. Baler says.

Treating RSV

It is important to keep children with RSV well-hydrated; offer water frequently. Treat their fever. Keep their nostrils clean with saline nasal drops and suction them periodically. Your provider may try a breathing treatment with albuterol to assess whether the medication helps your child breathe better. This involves using a machine called a nebulizer to get the albuterol into the lungs.

Usually, RSV will get better on its own without antibiotics. However, about 2 percent of patients need to be admitted into the hospital for more intensive treatment, Dr. Baler says.

In addition, high-risk infants may receive a series of shots of an antibody called Palivizumab in the winter months to help prevent RSV infections and protect high-risk babies.

“These are given once a month during RSV season to just high-risk children to help prevent the disease,” Dr. Baler says.

Your pediatrician will let you know if your baby is a candidate for the antibody treatment.

Practice Good Hygiene to Help Prevent RSV

Like a cold, RSV is contagious and is transmitted from person to person. You can get it by inhaling droplets that someone coughs or sneezes or by picking it up from contaminated surfaces. RSV can survive up to six hours on surfaces.

People infected with RSV are usually contagious for three to eight days. However, those with weakened immune systems can be contagious for as long as four weeks, even if they are not showing symptoms.

Simple measures such as washing your hands regularly can help keep sickness at bay. Sneezing or coughing into your inner elbow, rather than your hand, also helps limit the spread of RSV.

When to Call Your Doctor

Call your health care provider immediately if your child has symptoms of RSV and is younger than 6 months, was born prematurely, or has a chronic respiratory condition or a weakened immune system.

Also call if your child has breathing problems such as wheezing, coughing or fast breathing. Call 911 if your baby’s skin or lips are blue or gray.


Worried your child may have RSV? Talk to your doctor. If you need a doctor, find one near you.