{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T13:21:50Z","timestamp":1792070510172,"version":"4.4.0"},"reference-count":31,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2020,5,30]],"date-time":"2020-05-30T00:00:00Z","timestamp":1590796800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>Coronavirus disease 2019 (COVID-19) was introduced in Korea early with a large outbreak in mid-February. We reviewed the public health interventions used during the COVID-19 outbreak and describe the impact on seasonal influenza activity in Korea.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>National response strategies, public health interventions and daily COVID-19\u2013confirmed cases in Korea were reviewed during the pandemic. National influenza surveillance data were compared between 7 sequential seasons. Characteristics of each season, including rate of influenza-like illness (ILI), duration of epidemic, date of termination of epidemic, distribution of influenza virus strain, and hospitalization, were analyzed.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>After various public health interventions including enforced public education on hand hygiene, cough etiquette, staying at home with respiratory symptoms, universal mask use in public places, refrain from nonessential social activities, and school closures the duration of the influenza epidemic in 2019\/2020 decreased by 6\u201312 weeks and the influenza activity peak rated 49.8 ILIs\/1000 visits compared to 71.9\u201386.2 ILIs\/1000 visits in previous seasons. During the period of enforced social distancing from weeks 9\u201317 of 2020, influenza hospitalization cases were 11.9\u201326.9-fold lower compared with previous seasons. During the 2019\/2020 season, influenza B accounted for only 4%, in contrast to previous seasons in which influenza B accounted for 26.6\u201354.9% of all cases.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Efforts to activate a high-level national response not only led to a decrease in COVID-19 but also a substantial decrease in seasonal influenza activity. Interventions applied to control COVID-19 may serve as useful strategies for prevention and control of influenza in upcoming seasons.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/cid\/ciaa672","type":"journal-article","created":{"date-parts":[[2020,5,28]],"date-time":"2020-05-28T11:09:26Z","timestamp":1590664166000},"page":"e132-e140","source":"Crossref","is-referenced-by-count":143,"title":["Impact of Public Health Interventions on Seasonal Influenza Activity During the COVID-19 Outbreak in Korea"],"prefix":"10.1093","volume":"73","author":[{"given":"Hyunju","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Republic of Korea"},{"name":"Seoul National University College of Medicine, Seoul, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heeyoung","family":"Lee","sequence":"additional","affiliation":[{"name":"Seoul National University College of Medicine, Seoul, Republic of Korea"},{"name":"Center for Public Health, Seoul National University Bundang Hospital, Seongnam, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4517-3840","authenticated-orcid":false,"given":"Kyoung-Ho","family":"Song","sequence":"additional","affiliation":[{"name":"Seoul National University College of Medicine, Seoul, Republic of Korea"},{"name":"Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eu Suk","family":"Kim","sequence":"additional","affiliation":[{"name":"Seoul National University College of Medicine, Seoul, Republic of Korea"},{"name":"Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeong Su","family":"Park","sequence":"additional","affiliation":[{"name":"Seoul National University College of Medicine, Seoul, Republic of Korea"},{"name":"Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jongtak","family":"Jung","sequence":"additional","affiliation":[{"name":"Seoul National University College of Medicine, Seoul, Republic of Korea"},{"name":"Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soyeon","family":"Ahn","sequence":"additional","affiliation":[{"name":"Department of Medical Research Collaborating Center, Seoul National University Bundang Hospital, Seongnam, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eun Kyeong","family":"Jeong","sequence":"additional","affiliation":[{"name":"Korea Centers for Disease Control and Prevention, Cheongju, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyekyung","family":"Park","sequence":"additional","affiliation":[{"name":"Korea Centers for Disease Control and Prevention, Cheongju, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong Bin","family":"Kim","sequence":"additional","affiliation":[{"name":"Seoul National University College of Medicine, Seoul, Republic of Korea"},{"name":"Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2020,5,30]]},"reference":[{"key":"2021070111225574100_CIT0001","doi-asserted-by":"crossref","first-page":"e112","DOI":"10.3346\/jkms.2020.35.e112","article-title":"Report on the epidemiological features of coronavirus disease 2019 (COVID-19) outbreak in the Republic of Korea from January 19 to March 2, 2020","volume":"35","author":"Korean Society of Infectious Diseases; 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