IMMUNIZATION Immunization means vaccination. These are biological substances that provide protection against specific diseases. In which the child’s immune system makes a specific immune response (antibody) against the given agent. This specific substance is called a vaccine. Vaccines are prepared from weakened or inactivated pathogens. Types of Vaccines: Live Vaccines like BCG, OPV, MMR, etc Killed vaccine like pentavalent, DPT etc Toxoid like diphtheria, tetanus etc. Apart from this, the