Public Health Wales | MMR vaccine proves 99 per cent effective during measles outbreak

Reported cases of measles in England and Wales from 1940–2007. The graph shows the bi-annual cycle of epidemics that followed the war. (Photo credit: Wikipedia)

Emerging data from the measles outbreak centred around the Swansea area is showing that two doses of the MMR protects in around 99 of 100 cases.

 

The data also suggests that one dose of MMR vaccine has shown to protect against measles in more than 95 out of every 100 cases vaccinated – higher than previous experience.