Workers employed in the sector of health care must manage a wide range of activities and environments that threaten their health and expose them to illnesses and accidents. Many settings in which health care staff did its job and the multiplicity of tasks it performs can represent many dangers. The nature of their work, be it basic care for physical or mental disability, the patient handling or cleaning services, implies that the health and safety are a top priority in this sector (Friedman, 1974). However, American data indicate that ...