Adult vaccine
Mpox Vaccine
The mpox vaccine helps protect against mpox (formerly monkeypox), a viral infection causing a rash and flu-like illness, and is offered to those at higher risk.
What it protects against
It helps protect against mpox (previously called monkeypox), a viral infection that causes a rash, blisters and flu-like symptoms, and which can be more serious in some people.
Who it's for
People assessed to be at higher risk of exposure, and sometimes those who have been in close contact with a case, as advised by health services during outbreaks.
How it works
It uses a related, modified virus that cannot cause disease but prompts protection against mpox and smallpox, usually given as two doses.
Safety
Safety and side effects
It is safe and well tolerated, with common effects being soreness, redness or itching at the injection site, tiredness and headache, which settle quickly.
Education and reference only. This is general information, not a personal recommendation, and does not list doses — follow the current NHS schedule and your clinician's advice. Seek urgent help for signs of a serious allergic reaction after any vaccine.
Answers
Mpox Vaccine: frequently asked questions
Who is offered the mpox vaccine?
It is offered to groups assessed to be at higher risk of exposure, and sometimes to close contacts of a case. Eligibility can change during outbreaks, so follow current NHS advice.
Is the mpox vaccine the same as the old smallpox vaccine?
It is a modern, safer relative. Because mpox and smallpox viruses are related, the vaccine protects against both, but it uses a modified virus that cannot cause disease.
Related
Other adult vaccines
Sources
Where this is drawn from
- NHS — Vaccinations
- UK Health Security Agency (UKHSA) — the Green Book
- WHO — immunization
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