Dr Marion Lyons of Public Health Wales says with 20 new cases of measles daily in Wales at the moment a death would not be surprising.
An investigation is underway on Friday to find out if a 25 year-old man from Port Tennant near Swansea died from the virus.
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Any remaining wintry showers will die away through the first part of the night.
Cold and bright with some showers. It will be a cold start to the day, with some icy patches possible.
We look back at some of the stories, people and events that stood out in 2014.