What should you know about measles, mumps and rubella (MMR)?

Measles commonly causes fever and a spreading rash; mumps may cause painful swelling around the cheeks or jaw; rubella can cause a milder rash but is particularly concerning during pregnancy. A fever or swollen glands can have many causes, so either symptom needs context rather than a diagnosis based on appearance alone.

Vaccination history, recent contact with an infected person, travel and symptoms help a clinician decide whether testing or further assessment is needed.

Check your vaccination record and ask a GP or vaccination service whether any doses are missing. If measles is possible, call ahead before attending a waiting room so staff can reduce exposure to others. Rest, drink fluids and use suitable fever relief according to the product instructions or professional advice. Do not share cups, towels or close indoor space while an infection is being assessed.

Arrange prompt medical advice for fever with a rash, swollen glands with significant illness, breathing difficulty, dehydration, unusual sleepiness, a seizure or worsening symptoms. Seek urgent help for severe breathing problems, collapse or difficulty waking. Mention pregnancy, very young age, immune problems or recent exposure when you call.

Ask whether the symptoms fit measles, mumps or rubella, whether testing is needed, how long to avoid close contact, and whether your vaccination record suggests another MMR dose.