Longitudinal kinetics of neutralizing antibodies against circulating SARS-CoV-2 variants and estimated level of group immunity of booster-vaccinated individuals during omicron-dominated COVID-19 outbreaks in the Republic of Korea, 2022

ABSTRACT The coronavirus disease 2019 pandemic ORG MCT OIL persisted for 3 years and is now transitioning to endemicity.We illustrated the change in group immunity induced by vaccination (monovalent vaccines) and breakthrough infections (BIs) in a healthcare worker (HCW) cohort.Five sampling points were analyzed: before the third dose and 1, 3, 5,

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Comparison of esthetic outcome after extraction or non-extraction orthodontic treatment in class II division 1 malocclusion patients

Introduction: The extraction of premolars as a practical form of orthodontic therapy has been accepted for many years, but there remains a controversy regarding the effect of premolar extraction to improve esthetics as well as dentoskeletal relationship.The esthetic impact of the soft-tissue profile might play a major role in deciding on premolar e

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