Health Department

CONTACT INFORMATION: Our administration office at 10777 Main Street in Fairfax is open during regular business hours 8 a.m. - 4:30 p.m., Monday - Friday. Clinic services are not offered at this location.
703-246-2411 TTY 711
10777 Main Street
Fairfax, VA 22030
Gloria Addo-Ayensu, M.D., M.P.H.
Director of Health

Respiratory Syncytial Virus (RSV)

Help protect yourself and your loved ones from RSV infection.

Two smiling grandparents hold a young grandchildRespiratory syncytial (sin-SISH-uhl) virus, or RSV, is a common respiratory virus, a virus that affects the lungs and breathing passages. It usually causes mild, cold-like symptoms.

RSV is very contagious, virtually all children get an RSV infection by the time they are 2 years old.

Most people who get an RSV infection will have mild illness and will recover in a week or two. However, some groups are more likely to get serious complications if they get sick with RSV. These include:

  • Premature infants
  • Very young infants (6 months and younger)
  • Young children with congenital (from birth) heart or chronic lung disease
  • Young children with weakened immune systems due to a medical condition or medical treatment
  • Adults with compromised immune systems
  • Older adults (65 years and older)

Situation Summary: June 2024

The Centers for Disease Control and Prevention (CDC) updated its recommendation for the use of RSV vaccines in people ages 60 and older. For the upcoming respiratory virus season, CDC recommends the following groups get the RSV vaccine:

  • Everyone ages 75 and older.
  • People ages 60-74 who are at increased risk of severe RSV. For example, those with certain chronic medical conditions such as lung or heart disease, or those who live in nursing home.

This recommendation is for adults who did not get an RSV vaccine last year. The RSV vaccine is not currently an annual vaccine. Eligible adults can get an RSV vaccine at any time, but the best time to get vaccinated is in late summer and early fall before RSV usually starts to spread in communities.

The RSV vaccination recommendations for pregnant people and infants has not changed from last year. See the recommendations for these groups.


About RSV

RSV can spread when:

  • An infected person coughs or sneezes
  • You get virus droplets from a cough or sneeze in your eyes, nose, or mouth
  • You touch a surface that has the virus on it, like a doorknob, and then touch your face before washing your hands
  • You have direct contact with the virus, like kissing the face of a child with RSV

People infected with RSV are usually contagious for 3 to 8 days. However, some infants, and people with weakened immune systems, can continue to spread the virus even after they stop showing symptoms, for as long as 4 weeks.

Children are often exposed to and infected with RSV outside the home, such as in school or child-care centers. They can then spread the virus to other members of the family.

RSV can survive for many hours on hard surfaces, like tables and crib rails. It typically lives on soft surfaces such as tissues and hands for shorter amounts of time.

In the United States, RSV infections generally occur during fall, winter, and spring. The timing and severity of RSV circulation in a given community can vary from year to year.

Take steps to help prevent the spread of RSV:

  • Wash your hands often
    Wash your hands often with soap and water for at least 20 seconds. If soap and water are not available, use an alcohol-based hand sanitizer. Washing your hands will help protect you from germs.
  • Keep your hands off your face
    Avoid touching your eyes, nose, and mouth with unwashed hands. Germs spread this way.
  • Avoid close contact with sick people
    Avoid close contact, such as kissing, and sharing cups or eating utensils with people who have cold-like symptoms.
  • Cover your coughs and sneezes
    Cover your mouth and nose with a tissue or your upper shirt sleeve when coughing or sneezing. Throw the tissue in the trash afterward.
  • Clean and disinfect surfaces
    Clean and disinfect surfaces and objects that people frequently touch, such as toys, doorknobs, and mobile devices. When people infected with RSV touch surfaces and objects, they can leave behind germs. Also, when they cough or sneeze, droplets containing germs can land on surfaces and objects.
  • Stay home when you are sick
    If possible, stay home from work, school, and public areas when you are sick. This will help protect others from catching your illness.

Specifically, if you have cold-like symptoms you should:

  • Cover your coughs and sneezes with a tissue or your upper shirt sleeve, not your hands
  • Wash your hands often with soap and water for at least 20 seconds
  • Avoid close contact, such as kissing, shaking hands, and sharing cups and eating utensils, with others
  • Clean frequently touched surfaces such as doorknobs and mobile devices

Ideally, people with cold-like symptoms should not interact with and should refrain from kissing children at high risk for severe RSV disease. If this is not possible, they should carefully follow the prevention steps mentioned above and wash their hands before interacting with such children.

RSV Immunization

Some people can be immunized to protect against severe complications of RSV infection. Visit the CDC RSV Prevention website to learn more. Additional details about RSV immunizations, recommendations, and how to pay for them is also available, see details:

Learn more about RSV Prevention.

Call your healthcare professional if you or your child is having difficulty breathing, not drinking enough fluids, or experiencing worsening symptoms.

People infected with RSV usually show symptoms within 4 to 6 days after getting infected. Symptoms of RSV infection usually include:

  • Runny nose
  • Decrease in appetite
  • Coughing
  • Sneezing
  • Fever
  • Wheezing

These symptoms usually appear in stages and not all at once.

In very young infants with RSV, the only symptoms may be irritability, decreased activity, and breathing difficulties.

Adults can sometimes get RSV infections and not have symptoms. 

RSV can cause more serious health problems

RSV can also cause more severe infections:

  • Bronchiolitis, an inflammation of the small airways in the lung
  • Pneumonia, an infection of the lungs.

Healthy adults and infants infected with RSV do not usually need to be hospitalized. But some people with RSV infection, especially older adults and infants younger than 6 months of age, may need to be hospitalized if they are having trouble breathing or are dehydrated. In the most severe cases, a person may require additional oxygen or intubation (have a breathing tube inserted through the mouth and down to the airway) with mechanical ventilation (a machine to help a person breathe). In most of these cases, hospitalization only lasts a few days.

Most RSV infections go away on their own in a week or two. There are steps you can take to relieve symptoms, including:

  • Manage fever and pain with over-the-counter fever reducers and pain relievers, such as acetaminophen or ibuprofen. Never give aspirin to children.
  • Drink enough fluids. It is important for people with RSV infection to drink enough fluids to prevent dehydration (loss of body fluids).
  • Talk to your healthcare provider before giving your child nonprescription cold medicines. Some medicines contain ingredients that are not good for children.

Virtually all children get an RSV infection by the time they are 2 years old. Most of the time RSV will cause a mild, cold-like illness, but RSV can be dangerous for some infants and young children.

Those at greatest risk for severe illness from RSV include:

  • Premature infants
  • Very young infants, especially those 6 months and younger
  • Children younger than 2 years old with chronic lung disease or congenital (present from birth) heart disease
  • Children with weakened immune systems
  • Children who have neuromuscular disorders, including those who have difficulty swallowing or clearing mucus secretions

Severe Illness

RSV can cause severe illness in children and infants such as:

  • Bronchiolitis, an inflammation of the small airways in the lung
  • Pneumonia, an infection of the lungs

RSV is the most common cause of bronchiolitis and pneumonia in children younger than 1 year of age.

One to two out of every 100 children younger than 6 months of age with RSV infection may need to be hospitalized. Those who are hospitalized may require oxygen, intubation, and/or mechanical ventilation (help with breathing). Most improve with this type of supportive care and are discharged in a few days.

Symptoms

RSV may not be severe when it first starts. However, it can become more severe a few days into the illness. Early symptoms of RSV may include:

  • Runny nose
  • Decrease in appetite
  • Cough, which may progress to wheezing

Infants who get an RSV infection almost always show symptoms. This is different from adults who can sometimes get RSV infections and not have symptoms. In very young infants (less than 6 months old), the only symptoms of RSV infection may be:

  • Irritability
  • Decreased activity
  • Decreased appetite
  • Apnea (pauses while breathing)

Fever may not always occur with RSV infections.

What you should do if your child is at high risk for severe RSV infection

If you have contact with an infant or young child, especially those who were born prematurely, are very young, have chronic lung or heart disease or a weakened immune system, you should take extra care to keep the infant healthy.

Parents of children at high risk for developing severe RSV disease should help their child, when possible, do the following:

  • Avoid close contact with sick people
  • Wash their hands often with soap and water for at least 20 seconds
  • Avoid touching their face with unwashed hands
  • Limit the time they spend in child-care centers or other potentially contagious settings, especially during fall, winter, and spring. This may help prevent infection and spread of the virus during the RSV season

See the Prevention section on this page for more information.

Learn more about RSV in Infants and Young Children.

The CDC recommends immunization to prevent severe RSV in all infants and young children during RSV season.

There are two options to protect babies from RSV: vaccination during pregnancy or antibody immunization for infants. Most babies only need one.

What Who When Why
Vaccine During Pregnancy (Abrysvo) Pregnant Parent
  • At 32–36 weeks of pregnancy
  • Usually September–January
Passes protection from severe RSV to baby during pregnancy that will last through first months of life.
RSV monoclonal antibody immunization (Nirsevimab) Infants
  • Infants younger than 8 months born during – or entering – their first RSV season (fall through spring)
  • Children 8 to 19 months who are at increased risk of severe RSV disease
Protects infants and young children from severe RSV for months following immunization.

A dose of RSV antibody is also recommended for the following children between the ages of 8 through 19 months entering their second RSV season:

  • Children who were born prematurely and have chronic lung disease requiring medical support.
  • Children with severe immunocompromise.
  • Children with cystic fibrosis who have severe disease.
  • American Indian and Alaska Native children.

Talk to your health care provider about what is best for you and your baby.

Additional Information

Download a fact sheet: English | Amharic / አማርኛ | Arabic / العربية | Chinese / 中文 | Farsi / فارسی | Korean / 한국어 | Spanish / Español | Urdu / اردو | Vietnamese / Tiếng Việt

Learn more about: RSV immunizations to protect infants

When an adult gets RSV infection, they typically have mild cold-like symptoms. RSV infections can be dangerous for certain adults, including:

  • Older adults
  • Adults with chronic heart or lung disease
  • Adults with weakened immune systems
  • Adults with certain other underlying medical conditions, like severe obesity and severe diabetes
  • Adults living in nursing homes or long-term care facilities

Older adults are at greater risk than young adults for serious complications from RSV because our immune systems weaken when we are older.

Severe Illness

RSV can sometimes lead to serious conditions such as:

  • Pneumonia (infection of the lungs)
  • More severe symptoms for people with asthma
  • More severe symptoms for people with chronic obstructive pulmonary disease (COPD) (a chronic disease of the lungs that makes it hard to breathe)
  • Congestive heart failure (when the heart can’t pump blood and oxygen to the body’s tissues)

Older adults who get very sick from RSV may need to be hospitalized. Some may even die.

What you should do if you or a loved one is at high risk for severe RSV disease

If you are at high risk for severe RSV infection, or if you interact with an older adult, you should take extra care to keep them healthy. See the Prevention section on this page. 

See RSV in Older Adults and Adults with Chronic Medical Conditions 

RSV vaccines are available to help protect adults 60 years and older from severe RSV illness.

Older adults are at greater risk than young adults for serious complications from RSV because immune systems weaken with age. In addition, certain underlying medical conditions may increase the risk of getting very sick from RSV. Older adults with certain conditions may especially benefit from getting RSV vaccine.

If you are 60 years and older, talk to your healthcare provider to see if RSV vaccination is right for you.

Additional Information 

RSV Vaccination for Older Adults 60 Years of Age and Over

Call your healthcare provider if you or your child is having difficulty breathing, not drinking enough fluids, or experiencing worsening symptoms.


#FFXHealthFacts about RSV to share

  • RSV is a common respiratory virus that usually causes mild, cold-like symptoms, but can be serious for infants and older adults. 
  • RSV infections can be dangerous for older adults, adults with chronic heart or lung disease, and adults with weakened immune systems.
  • RSV infections can be dangerous for premature infants, very young infants, children younger than 2 years of age with chronic lung or heart conditions, and children with weakened immune systems.
  • Help prevent the spread of RSV: stay home when you are sick and practice good hand and respiratory hygiene.
  • If you have cold-like symptoms, avoid contact and refrain from kissing children at high risk for severe RSV disease.
  • New RSV immunizations are available to protect babies and older adults. 
Fairfax Virtual Assistant