Public Health Wales say that the number of cases of measles in the Swansea area has reached 252.
Within the past week, 43 new cases have been reported.
The disease has now spread to children in 64 secondary and primary schools and nurseries across the area, with numbers of new cases doubling weekly.
The majority of the new cases are in the Swansea area, but cases are being reported across South East Wales.
The continuing spread of the disease in the Swansea area means that it is only a matter of time before we have a child whose health is seriously damaged by measles.
We are urging parents of unvaccinated children to make immediate arrangements with their GP for their children to receive the safe and highly effective MMR vaccine.
More top news
The UK Government has published an updated shortlist of sites to launch commercial spaceflights, with Llanbedr still in the running.
Swansea's clocks have come to a stand-still after budget cuts mean the official clock-watcher wasn't replaced after retiring last week.
Welsh Assembly Members will vote today on amendments to the violence against women, domestic abuse and sexual violence bill.