You need one shingles shot, or two if you're 19 to 49 years old

Most adults need a single dose of the shingles vaccine called Shingrix. If you're between 19 and 49 years old, you need two doses given 2 to 6 months apart. After you've received the full series, you don't need boosters — one or two doses is permanent protection.

The vaccine works differently depending on your age and health. Shingrix replaced an older vaccine called Zostavax, which required a booster every 5 years. Shingrix is more effective and lasts much longer, which is why the schedule changed.

Key Takeaways

  • Adults 50 and older need one dose of Shingrix; adults 19 to 49 need two doses spaced 2 to 6 months apart.
  • You do not need booster shots after completing the series — the protection is long-lasting.
  • If you received Zostavax (the older shingles vaccine) in the past, you should still get Shingrix at least 12 months later.
  • Your doctor can tell you whether you need the vaccine based on your age and medical history.
  • Insurance coverage varies, so check with your plan before your appointment.

Why the vaccine schedule depends on your age

The shingles vaccine protects against a virus that reactivates in your nerve tissue, causing painful blisters. Younger adults (19 to 49) need two doses because their immune systems respond differently than older adults. The two-dose schedule gives younger people stronger, more durable protection.

Adults 50 and older need only one dose. Research shows that a single dose provides strong protection in this age group, where shingles is more common. Your doctor may recommend the vaccine even if you're younger than 50 if you have certain health conditions that weaken your immune system.

The spacing between your two doses

If you need two doses, they should be given 2 to 6 months apart. You can space them closer together if needed — some people get both doses within a few weeks. However, spacing them further apart (up to 6 months) is also fine. The important thing is completing both doses; the exact timing within that window doesn't change how well the vaccine works.

Your doctor's office will schedule your second dose when you get your first shot. If you miss your appointment, you can reschedule without starting over. There's no penalty for spacing the doses further apart than planned.

What happens if you had the older Zostavax vaccine

If you received Zostavax (the vaccine used before 2017), you should still get Shingrix. Wait at least 12 months after your Zostavax dose before getting Shingrix. This waiting period lets your immune system reset so Shingrix can work as effectively as possible.

If you had multiple Zostavax doses over the years, the 12-month wait starts from your most recent dose. You still need the full Shingrix series — either one or two doses depending on your age — even if you had Zostavax before.

When you should not delay getting vaccinated

You don't need to wait for a specific time of year to get the shingles vaccine. Unlike the flu shot, there's no season when shingles is more common, so any time is a good time. If your doctor recommends it, you can get it at your next appointment.

If you've had shingles in the past, you can still get vaccinated. In fact, getting vaccinated after shingles can help prevent it from happening again. Most doctors recommend waiting until the shingles rash has completely healed before vaccinating, but there's no strict rule about how long to wait.

Insurance coverage and costs

Medicare Part D covers Shingrix for adults 50 and older, though your out-of-pocket cost depends on your specific plan. Most private insurance plans cover it as well. Some people pay nothing; others pay a copay that ranges from $0 to $50 per dose depending on their coverage.

If you don't have insurance or your plan doesn't cover the vaccine, ask your doctor's office about the cash price. Some community health centers offer the vaccine at reduced cost. Calling ahead to ask about coverage before your appointment saves time and prevents surprises at checkout.

What to expect when you get the shot

The shingles vaccine is given as an injection in your upper arm, just like many other vaccines. You don't need any special preparation — you can eat normally and take your regular medications. The shot itself takes less than a minute.

After the shot, you might feel arm soreness, fatigue, or mild fever for a day or two. These side effects are normal and mean your immune system is responding. Serious side effects are rare. You can take over-the-counter pain relievers if you're uncomfortable, and most people feel back to normal within 48 hours.

Frequently Asked Questions

Do I need a booster shot after getting Shingrix?

No. Once you've completed the series (one or two doses depending on your age), you don't need boosters. Studies show the protection lasts at least 7 years and likely much longer, possibly for life. Your doctor will tell you if research changes this recommendation.

Can I get the shingles vaccine if I'm pregnant?

Shingrix is not recommended during pregnancy because it hasn't been studied in pregnant people. If you're planning to become pregnant, you can get vaccinated before conception. If you're already pregnant, wait until after delivery to get the vaccine.

What if I only got one dose and I'm supposed to get two?

You can get your second dose anytime after your first, as long as it's at least 2 months later. There's no expiration on the first dose, so you won't need to start over if you've delayed. Contact your doctor's office to schedule the second dose.

Can I get the shingles vaccine at the same time as other vaccines?

Yes. Shingrix can be given at the same visit as other vaccines like the flu shot or COVID-19 vaccine. They're usually given in different arms. Getting multiple vaccines at once doesn't reduce how well any of them work.

I'm 45 years old — do I really need two doses?

Yes. Adults 19 to 49 need two doses spaced 2 to 6 months apart. The two-dose schedule provides stronger protection in younger age groups. Even though shingles is less common in your 40s, getting fully vaccinated now prevents it later when your risk increases.