Immunization · RSV
RSV Vaccine
RSV (respiratory syncytial virus) is a common respiratory infection that’s usually mild, but it can cause serious pneumonia in older adults and those with certain health conditions.
A single-dose vaccine sharply reduces the risk of severe RSV illness.
The Basics
For most people RSV feels like a cold, but in older adults and those with heart or lung disease it can lead to severe pneumonia and hospitalization. The vaccine is designed to prevent that serious illness.
Who & When
Current ACIP recommendations for adults:
- All adults 75 and older — a single dose.
- Adults 60–74 at increased risk of severe RSV (for example, chronic heart or lung disease, or living in a nursing home).
- Adults 50–59 with certain chronic conditions — added in 2025.
The bottom line: a one-time RSV vaccine for everyone 75 and older, and for those 50–74 with higher-risk health conditions.
The Schedule
For now, the adult RSV vaccine is a single dose, not an annual shot. It can usually be given alongside other vaccines.
Protection in Pregnancy
A separate maternal RSV vaccine is recommended during pregnancy (seasonally, around 32–36 weeks) to protect the newborn during their first, most vulnerable months. Infants can alternatively be protected with a preventive antibody. If you’re pregnant, we’ll talk through the options.
Is It Safe?
Yes. The most common effects are a sore arm and some fatigue or headache. Serious reactions are rare, and safety continues to be closely monitored.
Useful Links
Talk it through with Dr. Mui
Wondering if the RSV vaccine is right for you? Book a visit and we’ll review your age and health together.
Prefer to ask first? Text Dr. Mui at 617-675-4085.
This page is for general education and isn’t a substitute for professional medical advice, diagnosis, or treatment. Screening guidelines change over time and the right plan depends on your personal risk. Always talk with a qualified health provider about your specific situation.