Herpes zoster (shingles) vaccination

What it is for

Shingles, also known as herpes zoster, is caused by reactivation of the varicella zoster virus. Following chickenpox in childhood the virus remains within the nerve cells in an inactive form, and shingles occurs when some trigger factor — low immunity, an infection — reactivates it. A vaccine is available that helps protect against shingles.

What the vaccine is, and who it is for

The vaccine is made from a non-live, recombinant form of the varicella zoster virus antigen. It is recommended for adults aged 50 years and older, even if they have previously received another shingles vaccine. It can also be given to people whose immunity is reduced, including patients on methotrexate, tofacitinib or chemotherapy.

How it is given

It is administered as an intramuscular injection and is given in two doses, usually two months apart. Both doses are needed for the vaccine to work as intended.

Why have it

The vaccine is given to reduce the risk of shingles, and the risk of post-herpetic neuralgia — the persistent pain in the area where the rash occurred, which is a common complication of shingles.

Side effects

As with any vaccine, there may be mild and temporary side effects. Common ones include pain and swelling at the injection site, muscle pain, fatigue, headache and stomach symptoms. These typically resolve within a few days.

Consult your doctor for advice about your own case, particularly if you have any underlying health condition or concern.