Measles
Measles is caused by a virus. It can spread easily through the coughs and sneezes of someone who has the virus. Measles can lead to serious illness. It can sometimes be very dangerous, and people can die from it.
Measles is one of the most infectious diseases. Even a small drop in the number of people getting the vaccine can lead to an increase in measles cases. In recent years there has been a rise in measles cases in Wales. It’s important to have both doses of a measles-containing vaccine to help prevent further outbreaks.
Nearly everyone who catches measles will have a rash, a high temperature (fever) and feel very unwell. One in every 15 people gets complications, including infection of the lungs (pneumonia) and brain swelling (encephalitis).
A rash usually appears a few days after cold-like symptoms. Small white spots in the mouth may also appear. People can be infectious for a few days before and after the rash appears.
Learn more
If you would like to learn more about the vaccines, or the diseases they protect against, a number of information resources are available to help.
You can also call NHS 111 (external site) or your GP surgery for advice if you have any questions.
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