Classification	Term	Definition
Prevention		Prevention has the goal of decreasing the impact of a predictable phenomenon. The prevention occurs before the problem appears.Prevention refers to measures and actions taken by an individual or a society to prevent disease happening or its consequences. In general, prevention includes a wide range of interventions aimed at reducing risks to health.
	General	General prevention, applied before the problem appears, reduces the risk of a specific group being affected by a phenomenon.
	Personal	Personal prevention, applied before the problem appears, reduces the personal risk of being affected, at the time of real exposure.
Protection		Protection has the goal of decreasing the impact of the phenomenon, but only comes into operation when the event is taking place. The protection is, in general, a physical intervention. The exposure to the event is reduced through the intervention.
	General	General protection provides protection to the whole population in the same room or environment in which the protection measure is placed.
	Personal	Personal protection provides a physical protection against an actual, real, existing phenomenon.