Mold Mycotoxins & Immune Memory Mold Mycotoxins and Immune Memory Lock: Why Symptoms Persist After Exposure Ends One of the most confusing aspects of mold-related illness is why symptoms often continue long after a person has left the moldy environment . This persistence is frequently misunderstood and dismissed, but it is neither psychological nor a failure of detoxification. It is immunological . Certain mold-derived mycotoxins interact with the innate immune system , speci