The South Korean authorities are planning to introduce a three-level system of social distancing in the country due to an increase in the number of COVID-19 cases, the state-run Yonhap news agency reported, citing the Health Ministry's Centers for Disease Control and Prevention (KCDC).
Kim voiced concerns that the country may have to brace for a protracted pandemic as the virus is still spreading fast.
The total global virus caseload surpassed 10 million on Sunday after the first outbreak was reported in China late previous year. Most of those cases were in the area surrounding the city of Daegu, where many were linked to a single church congregation with thousands of members.
"Serology tests are being conducted on blood samples of 3,055 people to find out how many people have immunity against the novel coronavirus", Kwon Joon-wook, deputy director of the Korea Centers for Disease Control and Prevention (KCDC), said in a daily briefing in Osong, about 120 kilometers south of Seoul.
Cluster infections tied to churches in the greater Seoul area have emerged as the bugbear in the country's virus fight.
It then advised that dedicated infectious disease support boards be formed for large cities and existing laws be changed to better prevent the inflow of people who may bring in the illness from overseas. The number of new cases in the city was down by half from the day before, the National Health Commission reported.
Health officials warned that they may consider expanding tougher infection preventive measures - now in place only in the Seoul metropolitan area - across the country if the virus situations get worse.
Health authorities unveiled a three-level social distancing scheme on Sunday, saying that it could strengthen the degree of social distancing depending on the severity of the virus outbreak.
Level 2 will be applied when daily infections exceed 50 for the 14th straight day, but remain below 100. Level 3 means there is an outbreak of mass infections, under which daily virus cases exceed 100, according to the KCDC.
The country is also struggling to stem cases coming in from overseas.
One case each was reported in the eastern Gangwon Province and the North Chungcheong Province that sits in the country's central region.
- China reported a further decline in new cases, with just 12.
Imported cases, once the main source of virus cases here, fell to a single-digit figure early this month after the country strengthened quarantine measures on all global arrivals in April. Experts say the actual numbers, both in the US and globally, are likely to be far higher due to the large number of apparently asymptomatic cases and issues with testing.
South Korea, meanwhile, reported no additional deaths, bringing the death toll to 282. The total recovery rate was 90.1 percent.
A total of 108 more patients were discharged from quarantine after making full recovery, pulling up the combined number to 11,537.
Travelers at Frankfurt airport, Germany's biggest and a major intercontinental hub, will be able to get an on-site coronavirus test before jetting off after the airport, German carrier Lufthansa and medical research company Centogene open a walk-in testing center Monday.