Dr. Patrick Mahaney’s thoughts Dr. Patrick Mahaney, a well-known veterinarian, recently reported on the sulfonamide hypersensitivity hypothesis I had also written about as a suspected cause for the illness and death of dogs fed chicken treats contaminated with sulfonamide drug residues. Dr. Patrick Mahaney agrees, that sulfonamide drug residues could indeed trigger an allergic reaction to the sulfonamides found present…