Respiratory Syncytial Virus Infections
Respiratory syncytial virus, or RSV, is a common respiratory virus. It usually causes mild, cold-like symptoms. But it can cause serious lung infections, especially in infants, older adults, and people with serious medical problems.
The symptoms of RSV infection usually start about 4 to 6 days after infection. They include:
- Runny nose
- Decrease in appetite
- Cough
- Sneezing
- Fever
- Wheezing
These symptoms usually appear in stages instead of all at once. In very young infants, the only symptoms may be irritability, decreased activity, and trouble breathing.
RSV can also cause more severe infections, especially in people at high risk. These infections include bronchiolitis, an inflammation of the small airways in the lung, and pneumonia, an infection of the lungs.
There is no specific treatment for RSV infection. Most infections go away on their own in a week or two. Over-the-counter pain relievers can help with the fever and pain. However, do not give aspirin to children. And do not give cough medicine to children under four. It is also important to get enough fluids to prevent dehydration.
Some people with severe infection may need to be hospitalized. There, they might get oxygen, a breathing tube, or a ventilator.
Your health care provider may use many tools to make a diagnosis:
A medical history, including asking about symptoms.
A physical exam.
A lab test of nasal fluid or another respiratory specimen to check for RSV. This is usually done for people with severe infection.
Tests to check for complications in people with severe infection. The tests may include a chest x-ray and blood and urine tests.
There are some vaccines to protect against RSV illness. Two of them are for people ages 60 and older. If you are in this age group, talk to your provider about whether an RSV vaccine would be right for you.
If you are pregnant, there is a vaccine that is available to give between 32 and 36 weeks of pregnancy. It helps protect their newborn babies from RSV illness for the first 6 months of life.
There are two medicines to help prevent severe RSV illness in babies and young children. These medicines may help prevent severe RSV illness, but they can’t cure or treat children who already have RSV. And they cannot prevent an RSV infection. Both medicines are given by injections (shots).
One medicine is given to infants who are younger than 8 months during their first RSV season. This includes infants who are born during RSV season. This medicine may also be given to some children between the ages of 8 and 19 months who are at high risk for severe RSV illness. For example, they might be at high risk because they:
Were born prematurely
Have congenital heart disease
Have chronic lung disease
Have a weakened immune system
The other medicine is given monthly during RSV season. It is for children under 24 months of age who are at high risk for severe RSV illness.
There are also some steps you can take to lower your risk of getting or spreading an RSV infection, including:
Washing your hands often with soap and water for at least 20 seconds
Avoiding touching your face, nose, or mouth with unwashed hands
Avoiding close contact, such as kissing, shaking hands, and sharing cups and eating utensils, with others if you are sick or they are sick
Cleaning and disinfecting surfaces that you frequently touch
Covering coughs and sneezes with a tissue. Then throw away the tissue and wash your hands
Staying home when sick
RSV spreads from person to person through:
The air by coughing and sneezing
Direct contact, such as kissing the face of a child who has RSV
Touching an object or surface with the virus on it, then touching your mouth, nose, or eyes before washing your hands
People who have an RSV infection are usually contagious for 3 to 8 days. But sometimes infants and people with weakened immune systems can continue to spread the virus for as long as 4 weeks.
RSV can affect people of all ages. But it is very common in small children; nearly all children become infected with RSV by age 2. In the United States, RSV infections usually occur during RSV season, which is usually fall through spring.
Certain people are at higher risk of having a severe RSV infection:
Infants
Older adults, especially those ages 65 and older
People with chronic medical conditions such as heart or lung disease
People with weakened immune systems
References
Respiratory Syncytial Virus Infections – MedlinePlus – https://medlineplus.gov/respiratorysyncytialvirusinfections.html
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