What should you know about measles immunisation?

MMR immunisation protects against measles as well as mumps and rubella. After vaccination, the immune system can respond more quickly if it meets the virus. Protection is not a reason to ignore a compatible illness or possible exposure: fever, cough, red eyes and a spreading rash still warrant advice. A vaccination record helps a clinician decide whether the schedule is complete or whether catch-up planning is appropriate. Read about [MMR Vaccination](/treatments/preventive-care-and-vaccination/mmr-vaccination/) and [Measles](/conditions/measles/).

Look for reliable vaccination documentation and take it to a GP or vaccination service. If records are missing, ask how they can be checked and whether further doses are appropriate for age, pregnancy status, immune health and local guidance. Tell the clinician about allergies, previous reactions and medicines that affect immunity. After a possible exposure, call promptly rather than waiting for a rash. If illness is suspected, avoid shared indoor spaces and contact the service before arriving.

Seek urgent care for breathing problems, a seizure, confusion, severe dehydration, or rapidly worsening illness. Ask for prompt advice after exposure if the person is pregnant, very young, or has reduced immune function. New fever and rash should be reported before attending a clinic so infection-control arrangements can be made.

Ask whether the vaccination record shows adequate protection, whether a catch-up dose is suitable, and what to do after exposure. A [GP Consultation](/treatments/consultations-and-assessment/gp-consultation/) can cover personal medical history and timing. You can also discuss [Fever](/symptoms/fever/) or [Swollen Glands](/symptoms/swollen-glands/) if symptoms are present.