More than 800 people have now been infected with measles in South Wales, following 43 more confirmed cases in the last two days.
Health officials are warning that the outbreak won't end until unvaccinated children are given the MMR jab, but some parents still believe the jab can cause other problems.
ITV News Correspondent Emily Morgan reports:
A man who died in from a suspected case of measles in Wales was infected with the disease at the time of his death, health officials said.
A mother convinced the MMR vaccine led to her son's autism has not immunised her daughter, despite the link being disproved.