You generally do not need to get the RSV vaccine every year; right now, it is recommended as a one‑time dose for eligible adults until guidelines change.

How often should you get the RSV vaccine?

  • Current guidance says the RSV vaccine is not an annual vaccine at this time.
  • Adults who have already received one RSV vaccine dose are considered “done” and should not get another dose right now.
  • Experts are still studying how long protection lasts and whether future booster doses will be needed, so recommendations may change over the next few years.

Who is currently supposed to get it?

For adults (these are U.S. CDC-style recommendations and may vary by country):

  • Everyone 75+ years is recommended to get one RSV vaccine dose.
  • Adults 50–74 years with higher risk for severe RSV (for example chronic heart or lung disease, weakened immune system, certain other conditions) are also recommended to get one dose.
  • Adults outside these groups may discuss vaccination individually with their clinician depending on local guidance and personal risk factors.

For infants and young children, separate products and schedules (such as nirsevimab or maternal vaccination) are used and follow different rules from the adult RSV vaccines.

When is the best time to get it?

  • You can technically be vaccinated any time of year , but protection is most useful heading into RSV season.
  • In most of the continental U.S., health authorities suggest getting it in late summer to early fall (around August–October) so protection is strongest during fall and winter.

Think of it a bit like “front‑loading” your shield: you get one dose, timed just before RSV is expected to circulate most widely, and currently you don’t keep repeating that dose every season.

What might change in the future?

  • Data so far suggests protection lasts for at least two RSV seasons , which supports the current one‑dose approach.
  • Public health agencies are actively monitoring real‑world effectiveness and safety; they will revisit whether additional doses or boosters are needed and update recommendations accordingly.

Because RSV guidance has evolved quickly since these vaccines were first approved (2023 onward), and it is now early 2026, it is wise to:

  1. Check your country’s latest official health recommendations.
  2. Talk with a clinician if you:
    • Are 50 or older
    • Have heart, lung, or immune conditions
    • Care for or live with very vulnerable people

They can tailor whether you should get the RSV vaccine and help you time that single dose appropriately based on your local RSV season and your health situation.

TL;DR:
Right now, for adults, the RSV vaccine is a one‑time dose , mainly for older or high‑risk people, timed for late summer/early fall— not a yearly shot like the flu vaccine, unless future evidence changes recommendations.

Information gathered from public forums or data available on the internet and portrayed here.