Greetings, I’m Prof Gideon. I’m an Allergy Consultant in London, United Kingdom. Professor Lack is a Professor of Paediatric Allergy, Kings College London as well as an associate of the MRC-Asthmas UK Centre in Allergic Mechanisms of Asthma. He's also Head of St Thomas’ NHS Foundation Trust, Guy’s and the Kids’s Allergy Service.

He is a Consultant at Stanford University and to the Sean Parker Allergy Centre. He is on the Editorial Board of the Journal of Allergy and Clinical Immunology and Clinical and Experimental Allergy and is the Secretary to the Food Allergy Section of the World Allergy Organisation.