Secretary for Health, Welfare and Food Yeoh Eng-kiong returned to work yesterday after taking a four-day break in the wake of his resignation. Dr Yeoh started the short break after appearing with Chief Executive Tung Chee-hwa to announce his resignation on Wednesday. He will stay on for three months until a replacement is found. 'He attended several meetings today but no public functions,' his office said yesterday. It is understood that no public engagements have been lined up for the outgoing secretary this week. Secretary for Home Affairs Patrick Ho Chi-ping; Secretary for Education and Manpower Arthur Li Kwok-cheung; Permanent Secretary for Health, Welfare and Food Carrie Yau Tsang Ka-lai; and University of Hong Kong's faculty of medicine dean Lam Shiu-kum are being tipped as Dr Yeoh's successor.