Why is the MMR vaccine usually given at 12-13 months of age in the UK? 

Professor Octavio Ramilo explains why the MMR vaccine is not given until 12-13 months in countries such as the UK. In other countries the vaccine may be given at 9 months. The MMR vaccine can safely be given to babies younger than this, especially if there is a measles outbreak. More information on the MMR vaccine: vk.ovg.ox.ac.uk...