1. Ministry of Health and Welfare. COVID-19 patients with mild diseases should be treated in a general wards. 2022. Accessed October 4, 2022. http://www.mohw.go.kr/react/al/sal0301vw.jsp?PAR_MENU_ID=04&MENU_ID=0403&page=1&CONT_SEQ=370617
2. Korea Disease Control and Prevention Agency. KCDA press release: from February 3, PCR tests will be conducted as priority subjects such as high-risk groups (1.31, regular briefing). Updated 2022. Accessed May 4, 2022. https://www.kdca.go.kr/board/board.es?mid=a20501020000&bid=0015&list_no=718514&cg_code=C01&act=view&nPage=24
3. Centers for Disease Control and Prevention (US). Recommended infection prevention and control (IPC) practices when caring for a patient with suspected or confirmed SARS-CoV-2 infection. Updated 2022. Accessed April 28, 2022. https://www.cdc.gov/coronavirus/2019-ncov/hcp/infection-control-recommendations.html
4. Covid-19 Vaccine Effectiveness against the Omicron (B.1.1.529) Variant
5. Effect of mRNA Vaccine Boosters against SARS-CoV-2 Omicron Infection in Qatar