Original article Eun-Young Kim1, Yeon Chan Choi1, Hyeon Jin Choi1, Si Hyun Kim2, Jihyun Cho3, Seok Hoon Jeong4, Dokyun Kim4, Hyun Soo Kim5, Soo Hyun Kim6, Young Ah Kim7, Young Ree Kim8, Nam Hee Ryoo9, Jong Hee Shin6, Kyeong Seob Shin10, Young Uh11, Jeong Hwan Shin1 1Department of Laboratory Medicine and Paik Institute for Clinical Research, Inje University College of Medicine, Busan, Korea2Department of Biomedical Laboratory Science, Inje University, Gimhae, Korea.3Department of Laboratory Medicine, Wonkwang University Medical School, Iksan, Korea4Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea5Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea6Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea7Department of Laboratory Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea8Department of Laboratory Medicine, Jeju National University College of Medicine, Jeju, Korea9Department of Laboratory Medicine, Keimyung University School

Review article Ha-eun Cho1, Young Jin Kim2 1Department of Laboratory Medicine, Kyung Hee University Hospital, Seoul, Korea2Department of Laboratory Medicine, Kyung Hee University College of Medicine, Kyung Hee University Hospital, Seoul, Korea Correspondence to Young Jin Kim, E-mail: khmclab@gmail.com Ann Clin Microbiol 2025;28(3):17. https://doi.org/10.5145/ACM.2025.28.3.6Received on 7 July 2025, Revised on 4 September 2025, Accepted on 4 September 2025, Published on 20 September 2025.Copyright © Korean Society of Clinical Microbiology.This is an Open Access article which is freely available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/). Abstract Latent tuberculosis (TB) refers to a state in which an individual is infected with Mycobacterium tuberculosis but shows no clinical symptoms. The World Health Organization estimates that 23% of the global population has latent TB, which poses a significant public health challenge owing to the risk of progression to active TB. Diagnosis of latent TB involves tests, such as the

Original article Harshad Lade1*, Tae-Im Kim1*, Jung-Min Kim1, Yong-Kyun Kim2, Kibum Jeon3, Hyun Soo Kim4, Han-Sung Kim5, Wonkeun Song6, Jae-Seok Kim1 1Department of Laboratory Medicine, Hallym University College of Medicine, Kangdong Sacred Heart Hospital, Seoul, Korea2Department of Laboratory Medicine, Sahmyook Medical Center, Seoul, Korea3Department of Laboratory Medicine, Hallym University College of Medicine, Hangang Sacred Heart Hospital, Seoul, Korea4Department of Laboratory Medicine, Hallym University College of Medicine, Dongtan Sacred Heart Hospital, Hwaseong, Korea5Department of Laboratory Medicine, Hallym University College of Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea6Department of Laboratory Medicine, Hallym University College of Medicine, Kangnam Sacred Heart Hospital, Seoul, Korea *These authors contributed equally to this work. Correspondence to Jae-Seok Kim, E-mail: jaeseok@kdh.or.kr Ann Clin Microbiol 2025;28(3):15. https://doi.org/10.5145/ACM.2025.28.3.4Received on 23 May 2025, Revised on 20 June 2025, Accepted on 30 June 2025, Published on 10 September 2025.Copyright © Korean Society of Clinical Microbiology.This is an Open Access article which

Review article Si Hyun Kim1, Jeong Hwan Shin2 1Department of Biomedical Laboratory Science, Inje University, Gimhae, Korea2Department of Laboratory Medicine and Paik Institute for Clinical Research, Inje University College of Medicine, Busan, Korea Correspondence to Jeong Hwan Shin E-mail: jhsmile@paik.ac.kr Ann Clin Microbiol 2025;28(3):16. https://doi.org/10.5145/ACM.2025.28.3.5Received on 30 June 2025, Revised on 30 July 2025, Accepted on 1 August 2025, Published on 11 September 2025.Copyright © Korean Society of Clinical Microbiology.This is an Open Access article which is freely available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/). Abstract Accurate identification of the Mycobacterium tuberculosis complex (MTBC) and nontuberculous mycobacteria (NTM) is crucial for effective patient management. With declining tuberculosis and rising NTM infections in South Korea, rapid diagnostics are essential. This review provides a comprehensive overview of current diagnostic methods for mycobacterial identification used in Korean clinical laboratories. The field has shifted from conventional methods, such as

Original article Yeon Chan Choi1*, Eun-Young Kim1*, Hyun Jin Choi1, Si Hyun Kim2, Eunkyoung You1, Ja Young Lee1, Jihyun Cho3, Seok Hoon Jeong4, Dokyun Kim4, Hyun Soo Kim5, Soo Hyun Kim6, Young Ah Kim7, Young Ree Kim8, Nam Hee Ryoo9, Jong Hee Shin10, Kyeong Seob Shin11, Young Uh12, Jeong Hwan Shin1 1Department of Laboratory Medicine and Paik Institute for Clinical Research, Inje University College of Medicine, Busan, Korea2Department of Biomedical Laboratory Science, Inje University, Gimhae, Korea3Department of Laboratory Medicine, Wonkwang University Medical School, Iksan, Korea4Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea5Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea6Department of Microbiology and Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea7Department of Laboratory Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea8Department of Laboratory Medicine, Jeju National University College of Medicine, Jeju,

Original article Kwangjin Ahn1, Hyunju Choi1, Taesic Lee2, Young Uh1 1Department of Laboratory Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea2Department of Family Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea Correspondence to Young Uh, E-mail: u931018@yonsei.ac.kr Ann Clin Microbiol 2025;28(2):7. https://doi.org/10.5145/ACM.2025.28.2.1Received on 4 March 2025, Revised on 7 April 2025, Accepted on 14 April 2025, Published on 19 May 2025.Copyright © Korean Society of Clinical Microbiology.This is an Open Access article which is freely available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/). Abstract Background: Identifying Bacillus spp. and performing antimicrobial susceptibility testing (AST) is challenging because of their diversity and limited clinical laboratory resources. We investigated the isolation frequency and antimicrobial susceptibility of Bacillus spp. over a 4-year period. Methods: Bacillus isolates collected between 2020 and 2024 were identified using matrixassisted laser desorption ionization-time of flight mass spectrometry, and AST was performed using

Original article Changseung Liu1, Daewon Kim2, Jung-Hyun Byun3, Jeonghyun Chang4, Sungjin Jo5, Heungsup Sung6 1Department of Laboratory Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea2Department of Laboratory Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea3Department of Laboratory Medicine, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju, Korea4Department of Laboratory Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea5Department of Laboratory Medicine, Eunpyeong St. Mary’s Hospital, Catholic University College of Medicine, Seoul, Korea6Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea Correspondence to Heungsup Sung, E-mail: sung@amc.seoul.kr Ann Clin Microbiol 2025;28(1):5. https://doi.org/10.5145/ACM.2025.28.1.5Received on 28 February 2024, Revised on 10 March 2025, Accepted on 11 March 2025, Published on 20 March 2025.Copyright © Korean Society of Clinical Microbiology.This is an Open Access article which is freely available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND)