<prompt> Immunization is which type of preventionPrimordialPrimarySecondaryTertiary  <response>: Ans. b PrimaryRef: K. Park 23rd ed. 41, 370-73 All vaccinesimmunization are primary level of prevention. BCG vaccine used for treatment of bladder CA is secondary level of prevention.Must KnowLevel of Prevention with their modes and exampleLevel of preventionTimingMode of preventionExamplePrimordialBefore emergence of risk factor- Source reduction for protection of malaria. Preserving traditional life stylePrimaryRisk factor present but NO disease yetBy health promotion and specific protection. All vaccines Contraceptives Mosquito netsrepellantsDDT ChemoprophylaxisSecondaryWhen Disease has probably startedBy early diagnosis and treatment All screening and diagnostic tests. Treatment measures BP monitoringTertiaryDisease in progression:By disability limitation and rehabilitation. Physiotherapy Crutches in polio 