Daybreak's Health Editor Dr Hilary Jones said that we do need to be concerned by the measles outbreaks.
He said, "it hasn't reached a peak yet", with more cases to come as the children return back to school following the Easter break.
He added: "You only have to be in the same room with someone as measles and if you are not immune you will pick it up."
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.