A 25-year-old man has become the first person with measles to die in the Swansea outbreak as health authorities in Wales try to bring the highly infectious disease under control.
Laboratory tests by Public Health Wales (PHW) confirmed the diagnosis within hours of the man's body being found in a flat in Swansea. He has been named locally as Gareth Williams.
Investigations by the coroner as to whether the measles caused the death are continuing. If it were the reason, it would be the first measles fatality in the UK for five years.
Marion Lyons, PHW's director of health protection, said: "Public Health Wales laboratory tests have confirmed a diagnosis of measles in a 25-year-old male from Swansea who died on Thursday 18 April.
"The tests confirm only that the deceased had measles at the time of his death. Further investigations are being undertaken by the Swansea coroner to establish the cause of death.
"My sympathies are with the family at such a tragic time. Whatever the cause of death in this case, we should not be surprised if, as the outbreak grows, we start to see deaths in Wales."