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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Wales got their 2016 Six Nations campaign under way with an entertaining 13-all draw with Ireland at the Aviva Stadium.
Mosques across Wales and the rest of the UK have opened their doors today to encourage people to find out more about the Islamic faith.
Rain quickly clearing this evening with blustery, locally heavy, showers following, merging at times into longer spells of rain.