Secretary for Innovation, Technology & Industry Prof Sun Dong tested preliminarily positive for COVID-19, the Innovation, Technology & Industry Bureau announced today.

He is undergoing isolation in accordance with the Centre for Health Protection’s guidelines.

Prof Sun, who has no recent travel history, went to work today. He wore masks and followed disease prevention measures at work, including conducting rapid antigen tests daily.

He had a polymerase chain reaction-based nucleic acid test yesterday and got a negative result.

The bureau said it will carry out thorough cleaning and disinfection at the offices concerned and arrange for relevant staff members to get a virus test following the centre’s advice.