SEOUL, April 13 (Yonhap) -- South Korea's daily new coronavirus cases remained below 600 for the second straight day Tuesday on fewer tests over the weekend, amid concerns about a spike in COVID-19 cases in spring.
The country reported 542 more COVID-19 cases, including 528 local infections, raising the total caseload to 110,688, the Korea Disease Control and Prevention Agency (KDCA) said.
Tuesday's daily caseload was down from 587 the previous day, when the daily tally slipped below 600 for the first time in six days on fewer tests conducted over the weekend.
The country added five more deaths, raising the total to 1,775.
President Moon Jae-in warned Monday that the country may face an "explosive" wave of COVID-19 infections if it fails to contain the current phase of the pandemic, calling for more efforts to contain the virus.
Health authorities have expressed concerns over a fourth wave of the pandemic in spring as people let their guard down and increase activities in the season.
They warned of stronger restrictions on multiuse facilities if the virus transmissions show no signs of letup.
The number of locally transmitted cases surpassed 600 over the past week for the first time in three months, and the proportion of untraceable virus cases stood at 28.2 percent during the period, the KDCA said.
Last week, the country decided to maintain the current level of social distancing rules through May 2 to contain the virus, adding more restrictions to entertainment establishments.
The greater Seoul area, home to half of the nation's 52 million population, is under the Level 2 distancing scheme, the third highest in the five-phase system. The rest of the country is under Level 1.5, except for some municipalities that have adopted Level 2 measures.
Private gatherings of five or more people are banned nationwide.
Under the new guidelines, operations of entertainment establishments are banned in the greater Seoul area and the southeastern port city of Busan.
Of the newly confirmed locally transmitted cases, 156 came from Seoul, with Gyeonggi Province that surrounds the capital city accounting for 163.
The southeastern port city of Busan reported 39 new cases.
There were 14 additional imported cases.
The number of seriously or critically ill COVID-19 patients was 101, down two from the previous day.
The total number of people released from quarantine after making full recoveries was 101,332, up 528 from a day earlier.
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