The shingles vaccine is recommended for all adults 50 and older, regardless of whether they remember having chickenpox. Adults 19 and older with weakened immune systems also qualify. The vaccine, called Shingrix, is given as two doses and provides strong, long-lasting protection against shingles and its most dreaded complication: chronic nerve pain that can persist for months or years after the rash clears.
Adults 50 and Older
The CDC recommends two doses of Shingrix for every immunocompetent adult aged 50 and up. This applies even if you’ve had shingles before, since the virus can reactivate more than once. It also applies if you received the older shingles vaccine (Zostavax, which was discontinued in the U.S. in 2020). Zostavax used a weakened live virus and lost effectiveness within a few years, so switching to Shingrix is still recommended.
You don’t need a blood test or any proof that you had chickenpox. More than 99% of Americans born before 1980 carry the virus that causes shingles, whether they remember being sick or not. The virus stays dormant in nerve tissue and can reactivate decades later, especially as immune function naturally declines with age.
Adults 19 and Older With Weakened Immune Systems
In 2021, the FDA expanded the Shingrix indication to include adults 18 and older who are immunocompromised. The CDC’s vaccination committee recommends it starting at age 19. This group faces a significantly higher risk of shingles and more severe complications, so the age threshold is much lower than for the general population.
Conditions and treatments that qualify you include:
- Organ transplant recipients (both solid organ and bone marrow/stem cell transplants)
- Cancer patients, particularly those on chemotherapy or radiation
- People living with HIV
- Autoimmune and inflammatory conditions treated with immunosuppressive medications, such as rheumatoid arthritis, lupus, or inflammatory bowel disease
- Anyone taking medications that suppress the immune system, including high-dose corticosteroids and certain biologic therapies
If you’re about to start an immunosuppressive treatment, getting vaccinated beforehand is ideal. Your doctor can help determine the best timing relative to your treatment schedule. For bone marrow transplant recipients, for instance, the timing depends on how far out you are from the procedure.
The Two-Dose Schedule
Shingrix requires two shots to reach full effectiveness. For healthy adults 50 and older, the second dose is given 2 to 6 months after the first. For immunocompromised adults, the schedule can be compressed: the second dose can come as early as 1 to 2 months after the first, since these patients are at higher risk during any gap in protection.
Both doses matter. A single shot provides some protection, but the full two-dose series is what delivers the strong, durable immunity the vaccine is known for. If more than 6 months pass after your first dose, you don’t need to start over. Just get the second shot as soon as you can.
How Well Shingrix Works
Shingrix is one of the more effective vaccines available for any condition. Over the first eight years after vaccination, efficacy against shingles holds at about 91%. Even at the 10-year mark, protection remains meaningful, with efficacy around 73% in a long-term follow-up study of more than 7,000 adults whose average age was over 67 at the time of vaccination. Immune responses at 10 years stayed more than five times higher than pre-vaccination levels, suggesting the vaccine continues working well beyond the initial years.
Protection against postherpetic neuralgia, the persistent burning or stabbing nerve pain that can follow a shingles outbreak, is even higher. This is especially significant for older adults, since postherpetic neuralgia becomes more common and more severe with age and can last months to years.
What Side Effects to Expect
Shingrix has a reputation for causing noticeable short-term side effects, and the clinical trial data backs that up. In studies of more than 10,000 participants, about 17% experienced reactions severe enough to temporarily interfere with normal daily activities. Roughly 1 in 10 reported significant muscle pain, fatigue, headache, shivering, fever, or stomach upset.
Most side effects are mild to moderate and resolve within 2 to 3 days. They tend to be more common in younger recipients. The side effects are a sign of a strong immune response, not a sign of illness. Shingrix is not a live vaccine, so it cannot give you shingles. It uses a single protein from the virus to train your immune system, which is also why it’s safe for immunocompromised patients who could not receive the older live vaccine.
Who Should Not Get It
The only firm contraindication is a history of severe allergic reaction (anaphylaxis) to a previous dose of Shingrix or to any of its ingredients. The vaccine contains several components, including a plant-based compound derived from the soapbark tree and a lipid-based immune-boosting ingredient. If you’ve had a severe allergic reaction to a vaccine in the past but aren’t sure of the cause, your pharmacist or doctor can review the ingredient list with you.
If you currently have an active shingles outbreak, you should wait until the rash has resolved and you’ve recovered before getting vaccinated. Having had shingles in the past is not a reason to skip the vaccine. It’s actually a reason to get it, since the virus can reactivate again.
Cost and Insurance Coverage
For adults on Medicare, Shingrix is covered under Part D with zero out-of-pocket cost. This $0 cost-sharing provision was established under the Inflation Reduction Act and applies to all recommended vaccines covered by Part D, including the shingles vaccine. Most private insurance plans also cover Shingrix without a copay for adults who meet the age or medical criteria, though coverage details vary by plan.
Without insurance, the vaccine can cost over $300 for the two-dose series. GlaxoSmithKline, the manufacturer, offers a patient assistance program for eligible uninsured or underinsured adults. Pharmacies, including those in grocery stores and large retail chains, commonly stock and administer the vaccine without needing a separate doctor’s visit.