Biosafety is the application of knowledge, techniques and equipment to prevent people, laboratories, hospital areas and the environment from exposure to potentially infectious agents or agents considered biological risks.

Hospital biosafety, through scientific organizational measures, defines the containment conditions under which infectious agents must be manipulated with the objective of confining biological risk and reducing potential exposure to:

of potential infectious agents.

The basic elements that biological safety uses to contain risk and

caused by infectious agents are three:

Biosafety levels are international standards and their classification is based on the degree of lethality of the diseases.