Genetic predispositions can affect, but do not automatically defeat, the compensability of a chemically-induced illness in Georgia, because the controlling question is whether the workplace exposure satisfies the elements of an occupational disease. Under O.C.G.A. § 34-9-280, a chemically-induced illness is compensable as an occupational disease when the worker proves a defined set of elements, and a genetic susceptibility is relevant mainly to two of them.
The statutory elements require proof of:
- A direct causal connection between the conditions of the work and the disease
- That the disease followed as a natural incident of the exposure created by the employment
- That the disease is not one to which the worker had substantial exposure outside the employment
- That the disease is not an ordinary disease of life to which the general public is exposed
- That the disease originated in a risk connected with the employment
A genetic predisposition is most often raised against the fourth and fifth elements, with the employer arguing that the illness stemmed from the worker’s inherited susceptibility rather than from a workplace hazard. Georgia law, however, does not deny benefits merely because a worker was more vulnerable, since a work exposure that aggravates or triggers a latent condition can still be compensable when it is a contributing cause that meets the elements. Where both work and non-work factors contribute, O.C.G.A. § 34-9-285 allows compensation to be apportioned, reducing the award to reflect the share of disability attributable to the work-related disease. The predisposition shapes the causation and apportionment analysis rather than serving as an automatic bar.