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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Catch up on the latest episode of Coast & Country. This time, we're celebrating all things made in Wales!
Public Health Wales is launching the programme after new survey reveals many parents don't realise their child is overweight.
Wales needs assurances powers over the environment and agriculture come straight to Cardiff post-Brexit, says the Rural Affairs Secretary.