Dr. Mack is a Pediatric Allergy, Asthma and Immunology Specialist.   He is an Assistant Clinical Professor in the Department of Pediatrics at McMaster University and is on the Board of Directors for CSACI.  He is one of the Executive of the Section of Allergy for the Ontario Medical Association.  He has spoken around the world at international conferences about OIT and the management of food allergy. His interests include early childhood allergy prevention, anaphylaxis education and oral food immunotherapy.