The shingles vaccine is recommended starting at age 50 for healthy adults. If you have a weakened immune system, you can get vaccinated as early as 19. The only shingles vaccine available in the United States is Shingrix, which requires two doses spaced a few months apart.
The Standard Age: 50 and Older
The CDC recommends Shingrix for all adults aged 50 and older, regardless of whether you remember having chickenpox. Most people over 50 carry the dormant virus that causes shingles, even if they never had noticeable chickenpox symptoms. There is no maximum age for getting the vaccine, so it’s never too late.
You don’t need to wait until a specific birthday within your 50s or time it around other health milestones. Once you turn 50, you’re eligible. The risk of shingles climbs steadily with age, roughly doubling by the time you reach your 70s and 80s, which is also when complications from the disease tend to be most severe.
The Exception: Age 19 With a Weakened Immune System
In 2021, the FDA expanded the Shingrix indication to include adults 18 and older who are immunocompromised. The CDC’s advisory committee followed by recommending the vaccine for adults aged 19 and older who are or will become immunodeficient or immunosuppressed due to a medical condition or treatment. This includes people living with HIV, those undergoing chemotherapy, organ transplant recipients on anti-rejection medications, and people taking certain drugs that suppress the immune system.
This earlier eligibility exists because a weakened immune system makes it much harder to keep the dormant chickenpox virus in check, significantly raising the risk of a shingles outbreak at a younger age. If you’re under 50 and take immunosuppressive medication or have a condition that affects your immune function, the vaccine is specifically recommended for you.
How the Two-Dose Schedule Works
Shingrix is given as two separate injections. For healthy adults 50 and older, the second dose is given 2 to 6 months after the first. Both doses are necessary for full protection. A single dose provides some short-term benefit, but the second shot is what builds the strong, lasting immune response.
If more than 6 months pass before you get the second dose, you don’t need to start over. You can pick up where you left off. Still, staying within the 2 to 6 month window gives you the best results.
If You Already Had the Older Vaccine
An older shingles vaccine called Zostavax was discontinued in the United States in November 2020. If you received Zostavax years ago, you should still get Shingrix. The newer vaccine provides significantly stronger and longer-lasting protection. Zostavax was a live vaccine whose effectiveness faded substantially within a few years, while Shingrix uses a different technology that maintains high efficacy over a much longer period.
How Well Shingrix Works
Shingrix is one of the more effective vaccines available for adults. In clinical trials, it was over 90% effective at preventing shingles in adults 50 and older, and that level of protection held even in people over 70. This is a notable improvement over the old Zostavax vaccine, which was roughly 50 to 60% effective and dropped off sharply with age.
Protection from Shingrix does decline gradually over time, but studies tracking recipients for 7 to 10 years show it remains strong well beyond the first few years. No booster dose is currently recommended.
What Shingrix Feels Like
Shingrix has a reputation for causing noticeable side effects, and it’s worth knowing what to expect so you’re not caught off guard. The most common reactions are soreness at the injection site, muscle pain, fatigue, and headache. Some people develop a low fever or feel generally run down for a day or two. These reactions tend to be more intense than a typical flu shot but resolve quickly, usually within 48 to 72 hours.
The second dose often causes stronger side effects than the first. Planning your appointments so you have a low-key day afterward is a practical move. These short-term effects are a sign your immune system is responding, and they’re far milder than the disease they prevent. Shingles itself can cause weeks of blistering, burning pain, and in some cases nerve pain that lingers for months or even years.
Cost and Insurance Coverage
If you have Medicare Part D, you typically pay nothing out of pocket for Shingrix. Medicare Part D plans are not allowed to charge a copayment or apply a deductible for vaccines recommended by the CDC’s advisory committee, and Shingrix qualifies. Most private insurance plans also cover the vaccine for adults 50 and older, though your specific cost sharing depends on your plan. Without insurance, the two-dose series can run over $300 total, so checking your coverage before scheduling is worthwhile.