Given as part of the childhood schedule at birth, 2, 4, 6 and 12 mths. 

Hepatitis B is one of several different hepatitis viruses that can cause liver infections and damage  It can be found in the body fluids of infected people, and spreads through: sexual contact; sharing drug injecting equipment, toothbrushes or razors; from mother to babies during childbirth; and unclean facilities used for tattooing and body piercing.

Given as part of the Australian childhood vaccination schedule at: 12 months of age, then again at 4 years of age.

MMR stands for the measles mumps and rubella vaccine. This combination shot injects three live-viruses (attenuated chemically) at the same time into a child. Some countries such as Japan have stopped using the combination vaccine because of the increased risk. Mass vaccination has resulted in a shift in the patterns of the diseases, with the age distribution having changed significantly and so now increasingly occurring in adolescents and young adults (when the diseases themselves cause more complications).