The Chief Executive, Mrs Carrie Lam (third left), holds a press conference on measures of fighting disease with the Chair Professor of Public Health Medicine and Founding Director of the WHO Collaborating Centre for Infectious Disease Epidemiology and Control at the University of Hong Kong, Professor Gabriel Leung (third right); the Secretary for Food and Health, Professor Sophia Chan (second left); the Director of Health, Dr Constance Chan (second right); the Chief Executive of the Hospital Authority, Dr Tony Ko (first right); and the Secretary for Education, Mr Kevin Yeung (first left), today (January 25) at the Central Government Offices, Tamar.