(ATTN: UPDATES with more info in last para)
SEOUL, Dec. 23 (Yonhap) -- South Korea's new coronavirus cases fell below 7,000 on Thursday, but critical cases and deaths surged to record highs as the country has reimposed antivirus restrictions amid the resurgence of infections and spread of the omicron variant.
The country added 6,919 more COVID-19 cases, including 6,856 local infections, bringing the cumulative total to 589,978, the Korea Disease Control and Prevention Agency (KDCA) said.
Thursday's tally is down from 7,456 on Wednesday but higher than 5,202 reported Tuesday. The number of new daily cases usually shrinks at the beginning of the week due to less testing over the weekend.
The number of critically ill patients came to a fresh high of 1,083, the KDCA said, breaking its previous record high of 1,063 tallied Wednesday.
Son Young-rae, a high-ranking official at the government agency, told a press briefing that the overall "upward trend has slowed down significantly" on increased booster shots and tightened virus restrictions.
The country added 109 more deaths from COVID-19, the most in one day since the onset of the pandemic, bringing the total to 5,015. The fatality rate stood at 0.85 percent.
The country reported 12 new omicron variant cases, bringing the total to 246, the authorities said.
Health authorities said a new omicron cluster infection broke out in Gangwon Province, with three confirmed and 11 suspected cases.
The bed occupancy rate in intensive care units for COVID-19 patients stood at 79.1 percent as of 5 p.m. on Wednesday, slightly down from 79.2 percent from the same time a day earlier. The figure for the greater Seoul area came to 85.1 percent.
A figure higher than 75 percent is considered to have surpassed the saturation point. As of midnight, 367 COVID-19 patients in the greater Seoul area were waiting to be admitted to hospitals while undergoing at-home treatment.
On Wednesday, the government said it will secure some additional 7,000 hospital beds for patients by the end of January to cope with the possibility of daily COVID-19 cases reaching 10,000.
The government is also planning a separate set of measures to cope with a possible situation where daily COVID-19 cases reach 15,000.
On Saturday, the government reimposed a set of revised virus restrictions across the country, which will remain in effect until Jan. 2 to stem the spread of the virus.
It marks a reversal of the government's "living with COVID-19" scheme that began early last month, with an aim to return to normalcy by relaxing virus restrictions in phased steps.
Under the new measures, the maximum size of private gatherings is limited to four people nationwide, from the previous limit of six in the capital area and eight elsewhere.
A 9 p.m. or 10 p.m. curfew is applied to businesses as well, depending on their type of service.
Of the locally transmitted cases, Seoul reported 2,695 infections and Gyeonggi Province that surrounds the capital logged 1,929 cases.
The KDCA said 63 cases came from overseas, raising the caseload to 16,600.
As of Thursday, 85.3 percent of the country's 52 million people had received their first shots of COVID-19 vaccines, and 82.2 percent had been fully vaccinated, while 26.7 percent had gotten booster shots, the KDCA said.
Health authorities said South Korea has signed a contract to purchase 20 million doses of Moderna vaccines for next year, securing a total of 80 million doses of mRNA vaccines.
Oral antiviral treatment for COVID-19 will be introduced to patients receiving at-home treatment, as well as high-risk patients and those with moderate and mild symptoms, the authorities said. The exact date of the rollout is expected to be announced later this month.
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