More MMR vaccine clinics will be held across south-west Wales today as the measles outbreak continues.
Health experts say they are particularly keen to vaccinate young people aged 16 - 25, although no one will be turned away.
The number of confirmed cases now stands at over 800.
Investigations are underway to establish whether the death of a 25-year-old man on Thursday is linked to the outbreak.
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.