New rules aimed at moving South Koreans toward "living with COVID-19" came into effect on Monday, with the easing of a range of curbs and the introduction of vaccine passports at high-risk venues such as gyms, saunas and bars.

The switch of focus comes as more than 75% of the country's population has been fully vaccinated. The first phase of the revised rules is due to last for a month, with plans to scrap all restrictions by February.

"The return path to everyday life, to which we're taking the first step today, is a path we've never been on," Health Minister Kwon Deok-cheol told an intra-agency COVID-19 meeting.