A clinical professor and Division Coordinator of Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Professor Colman McGrath’s clinical research intertest is in special care and he has published widely on the effectiveness of mouthwashes in mitigating oral diseases and respiratory infections (including Covid-19). Prof. McGrath is Past President of the Behavioral, Epidemiology & Health Service Research (BEHSR) group of the International Association of Dental Research (IADR) and he is the current Vice President of the Dental Anesthesiology & Special Care Dentistry (DASCR) of IADR. Colman has a h-index of >70 and over 300 publications.