Why measles can come back

Protection can be incomplete when people have missed vaccination, cannot locate their records, or have medical circumstances that affect vaccine decisions. Travel and contact between communities can introduce infection where fewer people are protected. Measles spreads readily through shared air, so one case can lead to concern among close contacts. A fever or swollen glands alone does not establish measles. Read [Measles](/conditions/measles/) for the illness overview.

Check your vaccination record and ask a clinician whether [MMR Vaccination](/treatments/preventive-care-and-vaccination/mmr-vaccination/) is suitable. After exposure, phone a [GP Consultation](/treatments/consultations-and-assessment/gp-consultation/) service rather than arriving without notice. If fever, cough, red eyes, or rash develops, stay away from shared indoor settings until you receive advice. Tell the clinician about pregnancy, immune problems, and medicines that affect immunity.

Arrange prompt advice after known exposure or when fever accompanies a new rash. Get urgent help for breathing problems, confusion, severe dehydration, or marked drowsiness. Phone ahead because a suspected contagious infection changes how an appointment should be arranged. [Fever](/symptoms/fever/) and [Swollen Glands](/symptoms/swollen-glands/) can occur with many conditions and need context.

Ask whether your record shows adequate protection, whether household contacts need advice, how long to limit contact, and which changes mean urgent review.