Delayed-onset injury cases are among the hardest to document, because years or decades can separate the exposure from the first symptoms, and proving what caused the disease is correspondingly difficult. These cases tend to turn on complex scientific and medical evidence.
Proving causation
This is the central hurdle. The plaintiff has to show, to a reasonable degree of medical and scientific certainty, that a specific exposure (asbestos, silica, chemical solvents, and the like) caused a particular disease (for example, mesothelioma, silicosis, or certain cancers) that surfaced much later. The defense will press alternative explanations, such as lifestyle, genetics, or other exposures, and will argue the causal link is speculative. Establishing the connection generally requires specialized experts: toxicologists, epidemiologists, industrial hygienists, and occupational medicine physicians.
The deadline questions
Two timing rules interact in these cases:
- The discovery rule. Georgia’s two-year statute of limitations can begin when the injury and its cause are discovered or reasonably should have been, rather than at the moment of exposure. Even so, the exact discovery date is often contested, and the defense will argue the plaintiff should have known sooner.
- The statute of repose. If the injury is tied to a specific product or piece of machinery, the ten-year product liability statute of repose (O.C.G.A. § 51-1-11(b)(2)) can bar a claim against that product, measured from its first sale, regardless of when the disease was discovered.
Documenting the exposure itself
Proving the type, duration, and level of exposure from decades earlier is difficult when workplace records are sparse or gone and co-workers who could testify have died or cannot be located.
Challenges to expert testimony
Georgia follows the Daubert standard for the admissibility of expert testimony (O.C.G.A. § 24-7-702). The defense will rigorously test whether the methods used to link exposure to disease are reliable and properly applied, and an unsuccessful challenge can exclude evidence the case depends on.
Other complications
Two more issues frequently arise:
- Confounding factors. Plaintiffs often have complex medical histories, making it harder to isolate the exposure as the cause.
- Corporate changes. The companies responsible may have dissolved or merged, creating difficulty in identifying and pursuing the liable entities.
To meet these challenges, plaintiffs’ attorneys rely on extensive historical research, careful medical-record review, and the most scientifically robust expert testimony available to build a credible chain from a decades-old exposure to a present illness.