In short: Measles, mumps and rubella are highly infectious viral illnesses that can cause serious complications. Two doses of MMR vaccine give long-lasting protection against all three. Since 1 January 2026, children in England are offered the combined MMRV vaccine, which also protects against chickenpox, at 12 and 18 months of age, and anyone older who has missed MMR doses can catch up on the NHS at any age.

This guide, written by a Ready Health prescribing pharmacist and checked against the UKHSA Green Book, explains the symptoms of each infection, the current UK schedule and what to do if you are not sure whether you are protected.

Why does MMR vaccination matter in 2026?

Measles cases rose sharply in England in 2024, and in January 2026 the World Health Organization confirmed that the UK no longer has measles elimination status. Uptake of two doses of MMR in children is below the 95% level needed to stop outbreaks. Measles is also common in many countries visited by UK travellers, so checking your vaccination record before travel is worthwhile.

What are the symptoms of measles?

Measles spreads very easily through coughs, sneezes and shared air. Symptoms usually start around 10 to 12 days after exposure and include:

high temperature, runny nose, cough and red, sore, watery eyes
small white or grey spots inside the cheeks
a blotchy rash a few days later, usually starting on the face and behind the ears before spreading. It can be harder to see on brown and black skin.

People are infectious from about four days before the rash appears until four days after. Complications include ear and chest infections, pneumonia, fits and, rarely, inflammation of the brain (encephalitis). Measles can be fatal. Babies, pregnant women and people with weakened immune systems are at highest risk.

What are the symptoms of mumps?

painful swelling of the glands at the side of the face, below the ears, on one or both sides
headache, aching joints and a high temperature

Possible complications include viral meningitis, painful swelling of the testicles or ovaries after puberty, pancreatitis and, rarely, hearing loss.

What are the symptoms of rubella (German measles)?

Rubella is often mild, with a spotty rash, swollen glands behind the ears, a mild fever and sometimes aching joints. The main danger is in pregnancy: infection, particularly in early pregnancy, can cause miscarriage, stillbirth or congenital rubella syndrome, which can affect a baby's sight, hearing, heart and brain.

What is the current MMR and MMRV schedule in the UK?

Child's date of birth	What is offered in England
On or after 1 January 2025	MMRV at 12 months and MMRV at 18 months
1 July 2024 to 31 December 2024	MMR at 12 months, then MMRV at 18 months and at 3 years 4 months
1 September 2022 to 30 June 2024	MMR at 12 months, then MMRV at 3 years 4 months
1 January 2020 to 31 August 2022	Two doses of MMR, plus a selective MMRV catch-up offer between November 2026 and March 2028 for children who have not had chickenpox
Older children, teenagers and adults	Two doses of MMR in total, at least one month apart, if not already had

Scotland, Wales and Northern Ireland have introduced similar changes; check local NHS information for exact timings.

How effective and safe is the MMR vaccine?

Two doses give around 99% protection against measles and rubella and good protection against mumps. MMR and MMRV are live vaccines containing weakened forms of the viruses. Side effects are usually mild and can include a sore arm, and about a week to 10 days later a mild fever, a short-lived rash or swollen glands. Fever-related fits can occasionally happen, and are a little more likely after the first dose of MMRV than after MMR. Serious allergic reactions are very rare.

Extensive research over many years has found no link between the MMR vaccine and autism.

Some MMR and MMRV vaccines contain porcine (pork) gelatine. Gelatine-free alternatives are available, so ask the vaccinating clinician if this matters to you.

Who should not have the MMR vaccine?

people who are pregnant (avoid becoming pregnant for one month after vaccination)
people with severely weakened immune systems
anyone who has had a severe allergic reaction to a previous dose or to a vaccine ingredient, such as neomycin

A clinician will check this before vaccinating. If you are pregnant and not immune to rubella, you will usually be offered MMR after the birth.

Frequently asked questions

How do I know if I have had two doses of MMR?

Check your child's red book or your GP record (you can request it or view it in the NHS App). If there is no record, it is safe to have the vaccine again.

Can adults have the MMR vaccine?

Yes. Adults who have not had two doses can have MMR free from their GP practice at any age. This is particularly important before pregnancy, for healthcare workers and before travel.

Can babies have MMR early before travel?

If there is a high risk of exposure, such as travel to an area with a measles outbreak, an extra early dose of MMR may be advised from 6 months of age. It does not count towards the routine doses, which are still given later.

Can older children have the new MMRV vaccine?

A selective catch-up offer runs from November 2026 to March 2028 for eligible children born between 1 January 2020 and 31 August 2022 who have not had chickenpox. Children born before 2020 are not eligible for MMRV on the NHS.

Key takeaways

Measles, mumps and rubella can all cause serious complications; measles is circulating in the UK again.
Since January 2026, young children are offered MMRV at 12 and 18 months, adding chickenpox protection.
Two doses of MMR protect for life, and it is never too late to catch up on the NHS.
Check your records before pregnancy and travel.

Sources and further reading

Last reviewed: October 2026 by Shamir Patel, Independent Prescribing Pharmacist, Ready Health. This article is general information and does not replace advice from your own clinician.

Unsure whether you or your family are protected, or travelling soon? Ready Health in Standish, serving Wigan, Chorley and Bolton, offers vaccination consultations where a clinician reviews your history and advises what, if anything, you need. You can book online.