Osong Public Health and Research Perspectives

Eun-Jin Kim

4 Articles

Review of the early reports of the epidemiological characteristics of the B.1.1.7 variant of SARS-CoV-2 and its spread worldwide: Yeonju Kim, Eun-Jin Kim, Sang-Won Lee, Donghyok Kwon; Osong Public Health Res Perspect. 2021;12(3):139-148. Published online June 24, 2021; DOI: https://doi.org/10.24171/j.phrp.2021.0037

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The variant B.1.1.7 of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the RNA virus causing the pandemic more than a year worldwide, was reported from United Kingdom (UK) in late December 2020. It was reported that mortality increases by 65% and transmissibility increases by 70%, which may result in an increase of reproduction number to 1.13−1.55 from 0.75−0.85. To analyze the global increasing trend of the variant B.1.1.7, we extracted results of B.1.1.7 from GISAID on May 11 and May 12, 2021, and conducted a doseresponse regression. It took 47 days to reach 20% and 121 days to reach 50% among the sequence submitted from UK. In Korea, cases of B.1.1.7 have increased since the first report of three cases on December 28, 2020. Positive rate of B.1.1.7 in Korea was 21.6% in the week from May 9 to May 15, 2021. Detection rate of the variants is expected to increase further and new variants of SARS-CoV-2 are emerging, so a close monitoring and control would be maintained for months.

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Mutations in SARS-CoV-2: Insights on structure, variants, vaccines, and biomedical interventions
Ahmed I. Abulsoud, Hussein M. El-Husseiny, Ahmed A. El-Husseiny, Hesham A. El-Mahdy, Ahmed Ismail, Samy Y. Elkhawaga, Emad Gamil Khidr, Doaa Fathi, Eman A. Mady, Agnieszka Najda, Mohammad Algahtani, Abdulrahman Theyab, Khalaf F. Alsharif, Ashraf Albrakati
Biomedicine & Pharmacotherapy.2023; 157: 113977. CrossRef
Incidence Evaluation of SARS-CoV-2 Variants in the Ulsan Area, Korea, Using PowerChek SARS-CoV-2 S-gene Mutation Detection Kit: A Pilot Study
Sang Hyuk Park, Hyun-Ki Kim, Hang Kang, Jung Heon Kim, Jaeseung Lee, Ji-Hun Lim, Seon-Ho Lee, Joseph Jeong
Annals of Laboratory Medicine.2022; 42(3): 363. CrossRef
Biological Properties of SARS-CoV-2 Variants: Epidemiological Impact and Clinical Consequences
Reem Hoteit, Hadi M. Yassine
Vaccines.2022; 10(6): 919. CrossRef
Virtual recruitment and participant engagement for substance use research during a pandemic
Carolin C. Hoeflich, Anna Wang, Ayodeji Otufowora, Linda B. Cottler, Catherine W. Striley
Current Opinion in Psychiatry.2022; 35(4): 252. CrossRef
Display of receptor-binding domain of SARS-CoV-2 Spike protein variants on the Saccharomyces cerevisiae cell surface
Hongguan Xing, Liyan Zhu, Pingping Wang, Guoping Zhao, Zhihua Zhou, Yi Yang, Hong Zou, Xing Yan
Frontiers in Immunology.2022;[Epub] CrossRef
Mutations in SARS-CoV-2 nucleocapsid in variants of concern impair the sensitivity of SARS-CoV-2 detection by rapid antigen tests
Ibrahim T. Hagag, Krzysztof Pyrc, Saskia Weber, Anne Balkema-Buschmann, Martin H. Groschup, Markus Keller
Frontiers in Virology.2022;[Epub] CrossRef
The Disease Severity and Clinical Outcomes of the SARS-CoV-2 Variants of Concern
Lixin Lin, Ying Liu, Xiujuan Tang, Daihai He
Frontiers in Public Health.2021;[Epub] CrossRef

Genomic Surveillance of SARS-CoV-2: Distribution of Clades in the Republic of Korea in 2020: Ae Kyung Park, Il-Hwan Kim, Junyoung Kim, Jeong-Min Kim, Heui Man Kim, Chae young Lee, Myung-Guk Han, Gi-Eun Rhie, Donghyok Kwon, Jeong-Gu Nam, Young-Joon Park, Jin Gwack, Nam-Joo Lee, SangHee Woo, Jin Sun No, Jaehee Lee, Jeemin Ha, JeeEun Rhee, Cheon-Kwon Yoo, Eun-Jin Kim; Osong Public Health Res Perspect. 2021;12(1):37-43. Published online February 23, 2021; DOI: https://doi.org/10.24171/j.phrp.2021.12.1.06

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Abstract PDF

Since a novel beta-coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported in December 2019, there has been a rapid global spread of the virus. Genomic surveillance was conducted on samples isolated from infected individuals to monitor the spread of genetic variants of SARS-CoV-2 in Korea. The Korea Disease Control and Prevention Agency performed whole genome sequencing of SARS-CoV-2 in Korea for 1 year (January 2020 to January 2021). A total of 2,488 SARS-CoV-2 cases were sequenced (including 648 cases from abroad). Initially, the prevalent clades of SARS-CoV-2 were the S and V clades, however, by March 2020, GH clade was the most dominant. Only international travelers were identified as having G or GR clades, and since the first variant 501Y.V1 was identified (from a traveler from the United Kingdom on December 22^nd, 2020), a total of 27 variants of 501Y.V1, 501Y.V2, and 484K.V2 have been classified (as of January 25^th, 2021). The results in this study indicated that quarantining of travelers entering Korea successfully prevented dissemination of the SARS-CoV-2 variants in Korea.

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Rapid Emergence of the Omicron Variant of Severe Acute Respiratory Syndrome Coronavirus 2 in Korea
Ae Kyung Park, Il-Hwan Kim, Chae Young Lee, Jeong-Ah Kim, Hyeokjin Lee, Heui Man Kim, Nam-Joo Lee, SangHee Woo, Jaehee Lee, JeeEun Rhee, Cheon-Kwon Yoo, Eun-Jin Kim
Annals of Laboratory Medicine.2023; 43(2): 211. CrossRef
Genomic evidence of SARS‐CoV‐2 reinfection in the Republic of Korea
Ae Kyung Park, Jee Eun Rhee, Il‐Hwan Kim, Heui Man Kim, Hyeokjin Lee, Jeong‐Ah Kim, Chae Young Lee, Nam‐Joo Lee, SangHee Woo, Jaehee Lee, Jin Sun No, Gi‐Eun Rhie, Seong Jin Wang, Sang‐Eun Lee, Young Joon Park, Gemma Park, Jung Yeon Kim, Jin Gwack, Cheon‐K
Journal of Medical Virology.2022; 94(4): 1717. CrossRef
SARS-CoV-2 B.1.619 and B.1.620 Lineages, South Korea, 2021
Ae Kyung Park, Il-Hwan Kim, Heui Man Kim, Hyeokjin Lee, Nam-Joo Lee, Jeong-Ah Kim, SangHee Woo, Chae young Lee, Jaehee Lee, Sae Jin Oh, JeeEun Rhee, Cheon-Kwon Yoo, Eun-Jin Kim
Emerging Infectious Diseases.2022; 28(2): 415. CrossRef
Humoral and Cellular Responses to COVID-19 Vaccines in SARS-CoV-2 Infection-Naïve and -Recovered Korean Individuals
Ji-Young Hwang, Yunhwa Kim, Kyung-Min Lee, Eun-Jeong Jang, Chang-Hoon Woo, Chang-Ui Hong, Seok-Tae Choi, Sivilay Xayaheuang, Jong-Geol Jang, June-Hong Ahn, Hosun Park
Vaccines.2022; 10(2): 332. CrossRef
Increase in Viral Load in Patients With SARS-CoV-2 Delta Variant Infection in the Republic of Korea
Jeong-Min Kim, Jee Eun Rhee, Myeongsu Yoo, Heui Man Kim, Nam-Joo Lee, Sang Hee Woo, Hye-Jun Jo, Donghyok Kwon, Sangwon Lee, Cheon Kwon Yoo, Eun-Jin Kim
Frontiers in Microbiology.2022;[Epub] CrossRef
Molecular Dynamics Studies on the Structural Stability Prediction of SARS-CoV-2 Variants Including Multiple Mutants
Kwang-Eun Choi, Jeong-Min Kim, Jee Eun Rhee, Ae Kyung Park, Eun-Jin Kim, Cheon Kwon Yoo, Nam Sook Kang
International Journal of Molecular Sciences.2022; 23(9): 4956. CrossRef
SARS-CoV-2 shedding dynamics and transmission in immunosuppressed patients
Jee-Soo Lee, Ki Wook Yun, Hyeonju Jeong, Boram Kim, Man Jin Kim, Jae Hyeon Park, Ho Seob Shin, Hyeon Sae Oh, Hobin Sung, Myung Gi Song, Sung Im Cho, So Yeon Kim, Chang Kyung Kang, Pyoeng Gyun Choe, Wan Beom Park, Nam Joong Kim, Myoung-Don Oh, Eun Hwa Choi
Virulence.2022; 13(1): 1242. CrossRef
Immunological and Pathological Peculiarity of Severe Acute Respiratory Syndrome Coronavirus 2 Beta Variant
Sunhee Lee, Gun Young Yoon, Su Jin Lee, Young-Chan Kwon, Hyun Woo Moon, Yu-Jin Kim, Haesoo Kim, Wooseong Lee, Gi Uk Jeong, Chonsaeng Kim, Kyun-Do Kim, Seong-Jun Kim, Dae-Gyun Ahn, Miguel Angel Martinez
Microbiology Spectrum.2022;[Epub] CrossRef
Clinical scoring system to predict viable viral shedding in patients with COVID-19
Sung Woon Kang, Heedo Park, Ji Yeun Kim, Sunghee Park, So Yun Lim, Sohyun Lee, Joon-Yong Bae, Jeonghun Kim, Seongman Bae, Jiwon Jung, Min Jae Kim, Yong Pil Chong, Sang-Oh Lee, Sang-Ho Choi, Yang Soo Kim, Sung-Cheol Yun, Man-Seong Park, Sung-Han Kim
Journal of Clinical Virology.2022; 157: 105319. CrossRef
Model-informed COVID-19 exit strategy with projections of SARS-CoV-2 infections generated by variants in the Republic of Korea
Sung-mok Jung, Kyungmin Huh, Munkhzul Radnaabaatar, Jaehun Jung
BMC Public Health.2022;[Epub] CrossRef
Comparative analysis of mutational hotspots in the spike protein of SARS-CoV-2 isolates from different geographic origins
Sanghoo Lee, Mi-Kyeong Lee, Hyeongkyun Na, Jinwoo Ahn, Gayeon Hong, Youngkee Lee, Jimyeong Park, Yejin Kim, Yun-Tae Kim, Chang-Ki Kim, Hwan-Sub Lim, Kyoung-Ryul Lee
Gene Reports.2021; 23: 101100. CrossRef
Review of Current COVID-19 Diagnostics and Opportunities for Further Development
Yan Mardian, Herman Kosasih, Muhammad Karyana, Aaron Neal, Chuen-Yen Lau
Frontiers in Medicine.2021;[Epub] CrossRef
Locally harvested Covid-19 convalescent plasma could probably help combat the geographically determined SARS-CoV-2 viral variants
Manish Raturi, Anuradha Kusum, Mansi Kala, Garima Mittal, Anita Sharma, Naveen Bansal
Transfusion Clinique et Biologique.2021; 28(3): 300. CrossRef
Molecular Dynamics Studies on the Structural Characteristics for the Stability Prediction of SARS-CoV-2
Kwang-Eun Choi, Jeong-Min Kim, JeeEun Rhee, Ae Kyung Park, Eun-Jin Kim, Nam Sook Kang
International Journal of Molecular Sciences.2021; 22(16): 8714. CrossRef
Management following the first confirmed case of SARS-CoV-2 in a domestic cat associated with a massive outbreak in South Korea
Taewon Han, Boyeong Ryu, Suyeon Lee, Yugyeong Song, Yoongje Jeong, Ilhwan Kim, Jeongmin Kim, Eunjin Kim, Wonjun Lee, Hyunju Lee, Haekyoung Hwang
One Health.2021; 13: 100328. CrossRef
Genomic epidemiology reveals the reduction of the introduction and spread of SARS-CoV-2 after implementing control strategies in Republic of Korea, 2020
Jung-Hoon Kwon, Jeong-Min Kim, Dong-hun Lee, Ae Kyung Park, Il-Hwan Kim, Da-Won Kim, Ji-Yun Kim, Noori Lim, Kyeong-Yeon Cho, Heui Man Kim, Nam-Joo Lee, SangHee Woo, Chae Young Lee, Jin Sun No, Junyoung Kim, JeeEun Rhee, Myung-Guk Han, Gi-Eun Rhie, Cheon K
Virus Evolution.2021;[Epub] CrossRef

2019 Tabletop Exercise for Laboratory Diagnosis and Analyses of Unknown Disease Outbreaks by the Korea Centers for Disease Control and Prevention: Il-Hwan Kim, Jun Hyeong Jang, Su-Kyoung Jo, Jin Sun No, Seung-Hee Seo, Jun-Young Kim, Sang-Oun Jung, Jeong-Min Kim, Sang-Eun Lee, Hye-Kyung Park, Eun-Jin Kim, Jun Ho Jeon, Myung-Min Choi, Boyeong Ryu, Yoon Suk Jang, Hwami Kim, Jin Lee, Seung-Hwan Shin, Hee Kyoung Kim, Eun-Kyoung Kim, Ye Eun Park, Cheon-Kwon Yoo, Sang-Won Lee, Myung-Guk Han, Gi-Eun Rhie, Byung Hak Kang; Osong Public Health Res Perspect. 2020;11(5):280-285. Published online October 22, 2020; DOI: https://doi.org/10.24171/j.phrp.2020.11.5.03

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Abstract PDF: Objectives
The Korea Centers for Disease Control and Prevention has published “A Guideline for Unknown Disease Outbreaks (UDO).” The aim of this report was to introduce tabletop exercises (TTX) to prepare for UDO in the future.
Methods
The UDO Laboratory Analyses Task Force in Korea Centers for Disease Control and Prevention in April 2018, assigned unknown diseases into 5 syndromes, designed an algorithm for diagnosis, and made a panel list for diagnosis by exclusion. Using the guidelines and laboratory analyses for UDO, TTX were introduced.
Results
Since September 9^th, 2018, the UDO Laboratory Analyses Task Force has been preparing TTX based on a scenario of an outbreak caused by a novel coronavirus. In December 2019, through TTX, individual missions, epidemiological investigations, sample treatments, diagnosis by exclusions, and next generation sequencing analysis were discussed, and a novel coronavirus was identified as the causal pathogen.
Conclusion
Guideline and laboratory analyses for UDO successfully applied in TTX. Conclusions drawn from TTX could be applied effectively in the analyses for the initial response to COVID-19, an ongoing epidemic of 2019 – 2020. Therefore, TTX should continuously be conducted for the response and preparation against UDO.

Infectivity of Homologous Recombinant HIV-1 Pseudo-virus with Reverse Transcriptase Inhibitor-related Mutations from Highly Active Antiretroviral Therapy Experienced Patients: Oh-Kyung Kwon, Ju-yeon Choi, Eun-Jin Kim, Sung Soon Kim; Osong Public Health Res Perspect. 2011;2(1):23-28. Published online June 30, 2011; DOI: https://doi.org/10.1016/j.phrp.2011.04.006

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Abstract PDF

Objectives
In this study, the viral fitness of pseudo-viruses with a drug-resistant site in the reverse transcriptase (RT) region of the genome was investigated. The pseudo-viruses were derived from highly active antiretroviral therapy (HAART)-experienced HIV/AIDS patients.
Methods
HIV-1 RNA was extracted from the plasma of HAART-experienced (KRB9149, KRB7021, KRC1097) and HAART-naïve (KRC5180, KRC5123) HIV-1 patients. The RT gene from the extracted viral RNA was amplified and the polymerase chain reaction product was cloned from the pHXB2Δ2-261 RT vector. C8166 and TZM-bl cell lines were used as the HIV-1 replication capacity measurement system. To quantify the infectivity of homologous recombinant HIV-1, the infectivity derived from each pseudo-virus was compared with the infectivity of the reference strain HXB2.
Results
Patient-derived HIV-1 was cotransfected into C8166 cells and the expression level of the p24 antigen was measured. The expression was high in the HIV-1 isolates from patients KRC5180 and KRB9149 and low in patients KRB7021, KRC5123, and KRC1097, when compared with the reference strain. The infectivity of the pseudo-virus measured in TZM-bl cells decreased in the order, reference strain HXB2 > KRC5180 > KRC5123 > KRB9149 > KRB7021 > KRC1097.
Conclusion
In this study, HIV-1 infectivity of the drug-resistant strain isolated from HAART-experienced patients with HIV/AIDS was found to be lower than the infectivity of the reference strain HXB2. This study provides useful data for the phenotypic susceptibility assay in HAART-experienced patients infected with HIV-1.

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Hae-Wol Cho, Chaeshin Chu
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