Dr. Harriss is an active member of a number of professional associations around the world, including the Emirates Thoracic Society, Kerala Academy of Pulmonary and Critical Care Medicine, the Indian Society of Critical Care Medicine, the American Thoracic Society, the European Respiratory Society and the European Society of Intensive Care Medicine (ESICM).
Dr. Harriss has a particular expertise in treating allergy and asthma patients, and the use of biologics in severe asthma. He provides critical care medicine and treats sleep Disorders in relation to respiratory medicine.