My daughter just had her MMR2 immunization at 3 years and 4 months old. To give you an insight if what an MMR vaccine is, this vaccine is an immunization shot against measles, mumps and rubella which is also called German measles. She got 2 injections on both upper arms which contains M-M-RvaxPro and REPEVAX.
This M-M-RvaxPro is a vaccine containing measles, mumps and rubella viruses that have been weakened. It has been said that when a person is given the vaccine, the immune system will make anti bodies against measles, mumps, and rubella viruses. And that the antibodies will help protect against infections cause by these viruses.
The REPEVAX is a vaccine used to protect against infectious diseases. They work by causing the body to produce its own protection against the bacteria and viruses that cause the targeted diseases. This vaccine by the way is used to boast protection against diphtheria, tetanus, pertussis which is whooping cough and poliomyelitis which is polio in children at the age of 3 years.
So, if your child is due for this immunization, it would be best to have him or her immunized as there are outbreaks of measles in some parts of the UK recently.