Measles is spread by tiny droplets in the air and can be spread easily to anyone nearby.
The first symptoms include a fever, cough, runny nose, sore and watery pink eyes and sometimes small white spots on the back inner cheek of the mouth. After three days, a blotchy rash, usually starting on the face, moves up over the head and down the body. There is no direct cure and complications can include pneumonia and diarrhoea.
Anyone who suspects they have measles should phone their GP or call Healthline on 0800 611 116 for advice. It is important to call first before seeing a doctor because measles is highly infectious, and people can infect others in the waiting room.