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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Turing increasingly cloudy from the west this afternoon. Winds strengthening too. Patchy rain and strong winds overnight.
David Cameron and Nick Clegg have unveiled proposals for a range of new powers for the Welsh Government and National Assembly.
Window cleaner Gavin Tainton tied up the 88 year-old woman with electric wire and left her for dead at her home where she lived alone.