RSV (Respiratory Syncytial Virus) Vaccine, mRNA

Brand Name(s): mResvia®

Why get vaccinated?

RSV vaccine, mRNA can prevent disease caused by infection with Respiratory Syncytial Virus (RSV).

RSV disease refers to an infection of the lower respiratory tract caused by RSV. RSV is a common virus that causes mild, cold-like symptoms. However, RSV disease can be more serious in infants and older adults. Those older adults at higher risk of severe disease from RSV disease include those:

  • with chronic heart or lung diseases

  • with weakened immune systems

  • nursing home or long-term care facility residents

RSV is usually spread through direct contact with the virus such as droplets from another person's cough or sneeze contacting your eyes, nose or mouth. It can also be spread by touching a surface that has a virus on it, such as a doorknob, and then touching your face before washing your hands.

Mild symptoms of RSV disease typically resolve in a week or two and may include the following:

  • runny nose

  • decrease in appetite

  • coughing

  • sneezing

  • fever

  • wheezing

In individuals at high risk of serious disease as previously described, RSV may cause shortness of breath and low oxygen levels or may also worsen chronic heart or lung disease, leading to a hospital stay and even potentially death.

What is RSV vaccine, mRNA?

RSV vaccine, mRNA helps protect against virus that causes RSV disease.

There are different types of RSV vaccines. The difference between the vaccines are based on how they are made and which individuals should receive them.

Who should get RSV vaccine, mRNA and when?

The Centers for Disease Control and Prevention (CDC) recommends a one-time dose for adults 75 years of age or older and also for adults 60– 75 years of age who are at increased risk of severe RSV disease.

What should you tell the person who is giving the vaccine?

Tell your vaccine provider if you:

  • have had an allergic reaction after a previous dose of RSV vaccine, mRNA or has any severe, life-threatening allergies.

  • have a fever.

  • have a bleeding disorder or are taking a blood thinner.

  • have a weakened immune system or are on a medicine that affects your immune system.

  • have received another RSV vaccine.

  • have ever fainted in association with an injection.

In some cases, your health care provider may decide to postpone RSV vaccination until a future visit.

People with minor illnesses, such as a cold, may be vaccinated. People who are moderately or severely ill should usually wait until they recover before getting RSV vaccine, mRNA.

Your health care provider can give you more information.

What are the risks of a vaccine reaction?

Side effects that have been reported with RSV vaccine, mRNA include:

  • redness, swelling, pain, or tenderness where the shot is given

  • fever

  • feeling tired

  • headache

  • muscle or joint pain

  • nausea or vomiting

  • facial paralysis

  • hives

People sometimes faint after medical procedures, including vaccination. Tell your provider if you feel dizzy or have vision changes or ringing in the ears.

As with any medicine, there is a very remote chance of a vaccine causing a severe allergic reaction, other serious injury, or death.

What if there is a serious reaction?

A severe allergic reaction would usually occur within a few minutes to one hour after getting a dose of the RSV vaccine, mRNA. If you see signs of a severe allergic reaction (rash, hives, swelling of the face and throat, difficulty breathing, a fast heartbeat, dizziness, or weakness), call 9-1-1 and get the person to the nearest hospital.

For other signs that concern you, call your health care provider.

Adverse reactions should be reported to the Vaccine Adverse Event Reporting System (VAERS). Your health care provider will usually file this report, or you can do it yourself. Visit the VAERS website at https://www.vaers.hhs.gov or call 1-800-822-7967. VAERS is only for reporting reactions, and VAERS staff does not give medical advice.

The National Vaccine Injury Compensation Program

The National Vaccine Injury Compensation Program (VICP) is a federal program that was created to compensate people who may have been injured by certain vaccines. Claims regarding alleged injury or death due to vaccination have a time limit for filing, which may be as short as two years. Visit the VICP website at https://www.hrsa.gov/vaccinecompensation or call 1-800-338-2382 to learn about the program and about filing a claim.

How can I learn more?

  • Ask your healthcare provider. They can give you the vaccine package insert or suggest other sources of information.

  • Call your local or state health department.

  • Visit the website of the Food and Drug Administration (FDA) for vaccine package inserts and additional information at https://www.fda.gov/vaccines-blood-biologics/vaccines .

  • Contact the Centers for Disease Control and Prevention (CDC): call 1-800-232-4636 (1-800-CDC-INFO) or visit CDC's website at https://www.cdc.gov/vaccines .

RSV (Respiratory Syncytial Virus) Information Statement. U.S. Department of Health and Human Services/Centers for Disease Control and Prevention National Immunization Program. 10/17/2024.

This report on medications is for your information only, and is not considered individual patient advice. Because of the changing nature of drug information, please consult your physician or pharmacist about specific clinical use.

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Selected Revisions: December 15, 2024.