Overall, the average analysis rate was 6.9% (793/11,570) in 2021, when variant analysis was first started; however, the average for 2022 was 20.4% (11,381/55,685) and for January to March 2023 was 24.4% (924/3,793), showing an increasing trend ( Table 2 ).
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[Surveillance Report of Imported SARS-CoV-2 Variants at Incheon International Airport and Incheon Port (February 15, 2021-March 2023)].
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