zoster vaccine recombinant, adjuvanted
Shingrix is GlaxoSmithKline's recombinant, adjuvanted herpes zoster vaccine. It contains varicella-zoster virus glycoprotein E and stimulates T-cell and antibody responses that prevent shingles and post-herpetic neuralgia in adults aged 50 and older and in adults aged 18 and older at increased risk.
This page is based on the FDA-approved Shingrix label and the EMA medicine record, cross-checked with the NCI Drug Dictionary; the mechanism is explained in plain language, and analogies are used only where they stay accurate.
How it works
Explains what the medicine does in the body, not dosing, side effects, or safety.
An analogy
Shingrix carries one signature protein from the shingles virus, plus an alert signal that makes the immune system pay attention. Patrols are retrained and multiplied against that protein. If the virus it comes from stirs, the immune system is ready to hold it down before the painful rash appears.
In simple terms
Shingrix contains glycoprotein E, a single protein from the surface of the varicella-zoster virus, combined with an adjuvant. It is a recombinant subunit vaccine, not a live vaccine - compared with live-attenuated shingles vaccines, it does not carry the risk of vaccine-induced shingles, including in immunocompromised patients (NCI). After vaccination, the immune system produces glycoprotein E-specific CD4-positive T-cells and antibodies. The boosted immune response helps keep herpes zoster in check in adults 50 and older and in adults 18 and older at increased risk.
In depth
Shingrix is a recombinant subunit vaccine containing varicella-zoster virus glycoprotein E (gE) - the most common antigen in VZV viral particles, which plays a key role in VZV infection - formulated with the AS01B adjuvant. Vaccination stimulates the host immune system to induce both gE-specific CD4-positive T-cells and antibodies against gE. The US label notes that a measure of the immune response that confers protection against HZ is unknown. Compared with live-attenuated vaccines, the subunit design avoids the risk of vaccine-induced herpes zoster in immunocompromised patients.
See it in motion
A schematic animation of the mechanism — simplified for clarity, not drawn to scale.
How subunit adjuvant vaccines train immunity
- The vaccine delivers a purified piece of the pathogen together with an immune-boosting adjuvant.
- Antigen-presenting cells pick up the piece and display it to helper T cells.
- T cells activate B cells, which multiply and make antibodies tuned to that pathogen.
- Memory cells remain, so the body responds faster if the real pathogen appears.
Target: Varicella-zoster virus glycoprotein E (gE)
The most common antigen in varicella-zoster virus particles; vaccination induces glycoprotein E-specific CD4-positive T-cells and antibodies, protecting against herpes zoster (shingles).
Approved uses
Approved uses differ by country and change over time. Always follow your local prescribing information.
Approved uses in United States
FDA- Prevention of herpes zoster (shingles) in adults aged 50 years and older
- Prevention of herpes zoster (shingles) in adults aged 18 years and older who are or will be at increased risk of herpes zoster due to immunodeficiency or immunosuppression caused by known disease or therapy
Approved uses in European Union
EMA- Prevention of herpes zoster and post-herpetic neuralgia in adults aged 50 years and older
- Prevention of herpes zoster and post-herpetic neuralgia in adults aged 18 years and older at increased risk of herpes zoster
Official sources
The statements on this page trace back to these records.
- DailyMed: SHINGRIX official US label
U.S. National Library of Medicine, DailyMed
- NCI Drug Dictionary: zoster vaccine recombinant, adjuvanted
National Cancer Institute
This page explains how the medicine works — it isn’t the patient leaflet. For anything that applies to you, read the leaflet that came with your medicine or ask your pharmacist.
MedUnfold provides educational content and is not medical advice. Always follow your local prescribing information and healthcare professional.