ENRIQUE ROJAS vs. COSTCO
This case involves a meat cutter/wrapper's claim for an industrial injury to his respiratory system, diagnosed as hypersensitivity pneumonitis. The defendant contested the finding of industrial causation, arguing the medical evidence was insufficient. The Workers' Compensation Appeals Board denied the defendant's petition for reconsideration. The Board affirmed the administrative law judge's decision, finding that the agreed medical examiner, Dr. Markovitz, established a reasonable medical probability of industrial causation, despite not identifying the precise causative agent. The Board relied on Dr. Markovitz's expert opinion, which utilized a process of elimination and epidemiological considerations to conclude the condition was likely work-related.