More than 50,000 people have had the MMR jab as efforts continue to stem the measles outbreak.
According to the latest figures from Public Health Wales there has been a total of 1,292 cases of measles reported across Wales since the beginning of November
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.