Occupational diseases are primarily caused by what factor?

Occupational diseases are primarily caused by long-term exposure to harmful substances or conditions in the workplace. This can include exposure to toxic chemicals, repetitive stress injuries from specific tasks, or environmental hazards over an extended period. These diseases develop gradually and are often linked to the cumulative effects of exposure rather than a single incident.

In contrast, accidental injuries typically occur suddenly and are linked to workplace accidents, which do not fit the definition of an occupational disease. While genetic predisposition can influence individual susceptibility to certain conditions, it is not an external factor associated with occupational exposure. Understanding these nuances is critical for recognizing the distinctions between workplace injuries and diseases, ultimately influencing claims and compensation within the West Virginia Workers' Compensation framework.