<prompt> Level of prevention that includes Specific protection:PrimordialPrimarySecondaryTertiary  <response>: Ans. b Primary. Ref: Park, PSM, 22nd 39, 351, 356, 361.LEVELS OF PREVENTIONPrimordial prevention It is first prevention in its purest form i.e. prevention of emergence of development of risk factors in countries or population groups in which they have not yet appeared. Efforts taken to discourage children from adopting harmful habits. Main intervention is through the individual or the mass education.Primary prevention Action taken prior to the onset of the disease, which removes possibility that a disease will ever occur. Intervention is done in a pre-pathogenesis phase of a disease. It is accomplished by health promotion, promotion of quality of life and specific protection. It is applied to prevention of chronic disease CAD, hypertension and cancer based on eliminationmodification of the risk factors by two strategies, namely;-Populationmass- High riskSecondary prevention Action, which halts the progress of disease at its incipient stage and prevents complications. Intervention includes early diagnosis and treatment. It is largely the domain of clinical medicine, but is an imperfect tool in control of transmission.Tertiary prevention When a disease has advanced beyond its early stage, it is still possible to accomplish prevention by tertiary intervention in late pathogenesis phase. All measures available to decrease or limit impairment and disabilities, minimize sufferings and to promote adjustment to irremediable diseases. 