The Chief Executive John Lee on Saturday marked his 100th day in office by warning that rushing to ease anti-epidemic measures would only backfire, and that a gradual approach was necessary to avoid chaos.

Writing on social media, Lee said he and his administration had made every effort to tackle the pandemic in their first 100 days.

At the same time, he said officials had scrapped the flight suspension mechanism, introduced the health code, and removed hotel quarantine for inbound travellers.

"Since the implementation of 'zero plus three', different industries and sectors have clearly benefited from it, and that they are preparing to resume more economic and social activities. But the government must remain cautious and not take things lightly," he wrote, referring the local term to describe no days of quarantine and three days of medical surveillance..

Lee also said differences in opinion should not detract from fighting the virus, although he understood there might be different views.

Looking back at the past 100 days, the CE said he and his team had listened to the public.

He spoke about quick responses to recent incidents, such as the accident at a concert by the popular boy band MIRROR, and the deadly crane collapse at a construction site in Sau Mau Ping.

Lee will deliver his maiden policy address on October 19. He said the blueprint would include measures to attract businesses and people, and to boost land supply and housing.