<prompt> Primary prevention includesImmunizationChorionic villi samplingPap smearSelf breast examination  <response>: Primary prevention is defined as action taken prior to the onset of the disease which removes the possibility that a disease will ever occur. It includes health promotion and specific protection. Health promotion includes health education environmental modifications nutritional interventions lifestyle and behavioral changes. Specific protection- fundamental public health measures and activities such as sanitation; infection control; immunization; protection of food, milk, and water supplies; environmental protection; and protection against occupational hazards and accidents, chemoprophylaxis, use of specific nutrients. Reference: Parks Textbook of Preventive and Social Medicine, 24th edition, Page no. 47 