You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which type of vaccine is MMR and explain in detail?
. <p> MMR vaccine is a mixture of live attenuated strains of three viruses causing mumps,measles and rubella.Children should get 2 doses of MMR vaccine: First Dose: 12 to 15 months of age Second Dose: 4 to 6 years of age (may be given earlier, if at least 28 days after the 1st dose)</p><p>ref;park&;s textbook of preventive and social medicine,22 nd edition,pg no 137</p>