A City Guide To Chizhou for Table Immunisation policy in the United Kingdom HPV from September the UK government will initiate a vaccination programme which requires three injections over a -month period for girls aged ? years old, on the basis that the vaccinations need to be given before sexual activity commences. A catch-up’ programme in / will target ?-year-olds. The vaccination will be made available in secondary schools. Immunisation behaviour The purpose of immunisation Vaccination is the oldest form of immunisation, in which immunity is provided to an individual by introducing a small amount of an antigen into their body either orally, intramuscularly or intradermally injecting into the skin, which triggers off the development of antibodies to that specific antigen. Some vaccinations, such as orally administered polio vaccine, measles, mumps and rubella, use live components, while others, such as hepatitis B, use inactivated components. Vaccinations against infectious disease have been credited with the virtual eradication of diseases that in previous centuries caused widespread morbidity and mortality, such as smallpox, diptheria and polio e.g. A City Guide To Chizhou 2016.