Yu Jung Choi, Jang Wook Sohn, Won Suk Choi, Seong-Heon Wie, Jacob Lee, Jin-Soo Lee, Hye Won Jeong, Joong Sik Eom, Eliel Nham, Hye Seong, Jin Gu Yoon, Ji Yun Noh, Joon Young Song, Hee Jin Cheong, Woo Joo Kim
In the 2023-2024 season, the influenza epidemic in South Korea peaked earlier than in recent years. In this study, we aimed to estimate the interim vaccine effectiveness (VE) of the influenza vaccination to prevent influenza during the early season. From November 1, 2023, to December 31, 2023, we enrolled 2,632 subjects with influenza-like illness from eight hospitals participating in hospital-based influenza morbidity and mortality surveillance. A retrospective test-negative case-control study was conducted to estimate the VE...
April 22, 2024: Journal of Korean Medical Science