Measles vaccinations in schools are continuing today. A vaccination team is holding sessions in Cwmtawe Community School in Pontardawe, with further sessions across Wales to be held over the weekend.
There are now over 800 confirmed cases in Wales.
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.