Public Health Wales will publish the latest measles outbreak figures later. On Friday, there were 1,158 confirmed cases in the Swansea area.
Health chiefs are warning that although the outbreak appears to be slowing, parents should still get their children vaccinated to prevent further outbreaks.
2013 is expected to be the worst year for measles in the UK for the past two decades. Read more about the illness and how it is treated.
If the Government's top adviser on immunisation thinks the risk of an emergency in England is a possibility, I believe him.