<prompt> All of the following comes under primary prevention EXCEPTPap smearHelmetsContraceptionVaccines  <response>: Ans. a Pap smearRef : K. Park 23rd ed. 41, 385 PRIMARY PREVENTION is the action taken prior to the onset of disease which removes the possibilities of disease occurrence. Modes of intervention : Health promotion Specific protection It is applicable for risk factors are present but disease has not yet taken place Pap smear is a screening test, which comes under secondary level of prevention. 