They may want to try experimental therapies appropriate for dust-induced lung disease. The responsibility to notify and warn is a common-sense, moral imperative despite the silence of the US government over the past 25 years. Careful analyses of tissue specimens can be very informative. Of course, the research opportunities are tremendous. New causes for pulmonary sarcoidosis can be found.
Prevention is possible.
For sarcoid patients who were recently diagnosed after being exposed to toxic dusts, the situation may be very different. That is, the dusts may not have had time to be moved from the lung to lymph nodes. He was never told the truth about his coworkers. He did not know that other sarcoid patients were given diagnoses of dust-induced lung disease or that very specific toxins were found in their lungs. He was never told these simple truths by any government officials.