[The concept of disease and causality relations]

The author recalls the doctrinal and jurisprudential evolution of the concept of disease, with particular reference to the time of onset of the pathological state during the period in which workers are under health surveillance. It is strongly recommended to provide insurance coverage in situations where the worker is transferred for purely preventive purposes and it is equally important to make a strictly accurate assessment of the relationship of causality between exposure to the pathogenic noxious agent and the onset of disease, particularly for penal law purposes.