Sung Soon Kim

Study on Oil Removal Characteristics According to Induced Gas Flotation (IGF) Operating Conditions

Kyoung-Eun Kim, Ki-Seok Lee, Sung Soon Kim, Chang-Gyun Kim

In this study, an eductor was designed and integrated into the Induced Gas Flotation (IGF) process to enhance oil removal from produced water. The eductor was specifically engineered to generate microbubbles, thereby improving gas-liquid interactions and promoting efficient oil separation. A series …

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

Young Jae Lee, Ju‐Yeon Choi, Jinyoung Yang, Jin Yang Baek et autres

ABSTRACT The coronavirus disease 2019 pandemic 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 …

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Korea Seroprevalence Study of Monitoring of SARS-COV-2 Antibody Retention and Transmission (K-SEROSMART): findings from national representative sample

Jina Han, Hye Jin Baek, Eunbi Noh, Kyuhyun Yoon et autres

OBJECTIVES: We estimated the population prevalence of antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), including unreported infections, through a Korea Seroprevalence Study of Monitoring of SARS-CoV-2 Antibody Retention and Transmission (K-SEROSMART) in 258 communities throughout Korea. METHODS: In August 2022, …

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Kaposiform hemangioendothelioma of skull base with dura invasion in a pediatric patient: a case report

Seong-Chan Jung, Tae‐Young Jung, Tae-Kyu Lee, Yeong Jin Kim et autres

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Urine Metabolite of Mice with Orientia tsutsugamushi Infection

Sang‐Ho Choi, Do-Hwan Ahn, Min‐Gyu Yoo, Hye‐Ja Lee et autres

Scrub typhus is an acute febrile, mite-borne disease endemic to the Asia-Pacific region. In South Korea, it is a seasonal disease that occurs frequently in the autumn, and its incidence has increased steadily. In this study, we used a liquid chromatography and …

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Six-month longitudinal immune kinetics after mRNA-1273 vaccination: Correlation of peak antibody response with long-term, cross-reactive immunity

Min Joo Choi, Jung Yeon Heo, Yu Bin Seo, Young Kyung Yoon et autres

Background: The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants and the persistence of the pandemic, even with mass coronavirus disease 2019 (COVID-19) vaccination, have raised questions about the durability of immunity and extent of cross-reactive immunity after vaccination. This …

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Predictive Value of Reactogenicity for Anti-SARS-CoV-2 Antibody Response in mRNA-1273 Recipients: A Multicenter Prospective Cohort Study

Min Joo Choi, Jung Yeon Heo, Yu Bin Seo, Young Kyung Yoon et autres

Messenger RNA (mRNA) vaccination was developed to mitigate the coronavirus disease 2019 pandemic. However, data on antibody kinetics and factors influencing these vaccines' immunogenicity are limited. We conducted a prospective study on healthy young adults who received two doses of the mRNA-1273 …

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Time Course Evaluation of Enzyme-Linked Immunosorbent Assays Based on Cell-Free Recombinant Proteins for Detection of Antibodies against Middle East Respiratory Syndrome Coronavirus

Jun Won Kim, Woo Jung Park, Sung Soon Kim, Joo-Yeon Lee et autres

Middle East respiratory syndrome coronavirus (MERS-CoV) infection has a high case fatality rate (1). Serological tests are used for patient management, seroprevalence surveys, passive immunotherapeutic studies, vaccine development, and identification of cases of asymptomatic infection. Enzyme-linked immunosorbent assays (ELISAs) based on recombinant …

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Estimation of SARS-CoV-2 Neutralizing Activity and Protective Immunity in Different Vaccine Types Using Three Surrogate Virus Neutralization Test Assays and Two Semiquantitative Binding Assays Targeting the Receptor-Binding Domain

Beomki Lee, Jae‐Hoon Ko, Kyoung Hwa Lee, Yong Chan Kim et autres

The coronavirus disease 2019 (COVID-19) pandemic continues to last, despite high COVID-19 vaccination rates. As many people experience breakthrough infection after prior infection and/or vaccination, estimating the neutralization activity and predicting the protective effect are major issues of concern. However, since standard …

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Kinetics of vaccine-induced neutralizing antibody titers and estimated protective immunity against wild-type SARS-CoV-2 and the Delta variant: A prospective nationwide cohort study comparing three COVID-19 vaccination protocols in South Korea

Eliel Nham, Jae‐Hoon Ko, Kyoung‐Ho Song, Ju‐Yeon Choi et autres

Introduction Despite vaccine development, the COVID-19 pandemic is ongoing due to immunity-escaping variants of concern (VOCs). Estimations of vaccine-induced protective immunity against VOCs are essential for setting proper COVID-19 vaccination policy. Methods We performed plaque-reduction neutralizing tests (PRNTs) using sera from healthcare …

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COVID-19 vaccine type-dependent differences in immunogenicity and inflammatory response: BNT162b2 and ChAdOx1 nCoV-19

Jung Yeon Heo, Yu Bin Seo, Eun Jin Kim, Jacob Lee et autres

Evaluation of the safety and immunogenicity of new vaccine platforms is needed to increase public acceptance of coronavirus disease 2019 (COVID-19) vaccines. Here, we evaluated the association between reactogenicity and immunogenicity in healthy adults following vaccination by analyzing blood samples before and …

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Robust neutralizing antibody responses after single-dose BNT162b2 vaccination at long intervals from prior SARS-CoV-2 infection and ceiling effect with repeated vaccination

Ji Yun Noh, Hee Jin Cheong, Woo Joo Kim, Ju‐Yeon Choi et autres

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