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Kim Sung Ran,Kang Hyeon Jeong,Jeong Hye Rin,Jang Su Yeon,Lee Jae Eun,Kim Da Eun,Lee Hae Ry,Cho Min Hee,Noh Ji Yun,Cheong Hee Jin,Kim Woo Joo,Song Joon Young 대한의학회 2022 Journal of Korean medical science Vol.37 No.35
The omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is known to have high infectivity and is more likely to evade vaccine immunity. However, booster vaccination is expected to strengthen cross-reactive immunity, thereby increasing the vaccine effectiveness (VE). This study aimed to evaluate the relative VE of the 3-dose (booster) vaccination compared with the 2-dose primary series vaccination in healthcare workers during omicron variant-dominant periods. During the omicron-dominant period from February 1, 2022 to February 28, 2022, a 1:1 matched case-control study was conducted. Healthcare workers with positive SARS-CoV-2 test results were classified as positive cases, whereas those with negative results served as controls. Compared with the 2-dose primary series vaccination, booster vaccination with mRNA vaccine showed moderate VE (53.1%). However, in multivariate analysis including the time elapsed after vaccination, the significant VE disappeared, reflecting the impact of recent vaccination rather than the third dose itself.
Skin whitening and anti-wrinkle activities of white rose petal extracts
JIEUN CHOI,EUN SUK AN,YOUNG-HWAN BAN,YESEUL CHA,HAIYU GUO,JI YOUNG LEE,NU RY HAN,EUN SANG CHO,EUN SU JEON,DA WOOM SEO,JUNG-MIN YON,HAE CHEON IM,JAE KWON CHOI,YOON BOK LEE,EHN-KYOUNG CHOI,YUN-BAE KIM 한국실험동물학회 2016 한국실험동물학회 학술발표대회 논문집 Vol.2016 No.08