Emerging Infectious Diseases · 2025
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Publications
Featured
Featured papers
Influenza and Other Respiratory Viruses · 2025
Seroprevalence trends of antibodies to SARS-CoV-2 in South Korea, 2021–2022: a repeated cross-sectional study.
Journal of Infectious Diseases · 2020
Effects of school holidays on seasonal influenza in South Korea, 2014-2016.
2026
- Pan K, ..., Ryu S, ..., Hao Y Superspreading potential of Nipah virus disease despite self-limited human-to-human transmission in community.International Journal of Infectious Diseases
- Ryu S, Vincete CR, Chang K. Beyond headcounts: South Korea’s medical school expansion and physician distribution.Journal of Royal Society of Medicine [IF 10.3 (2024)]
2025
- Vincete CR, Tanaka LF, Ryu S. Climate change is driving a surge of infectious diseases in Brazil.British Medical Journal [IF 45 (2024), rank 4/155 Medicine]
- Yao Z, Ryu S, Lau YC, Chan KYE, Xiong J, Kim T, Lee S, Lin W, Li L, Wu P, Cowling BJ, Ali ST. Environmental and social driving factors in shaping the transmissibility and seasonality of Hand, Foot, and Mouth Disease (HFMD) in South Korea and Hong Kong Journal of Infection and Public Health
- Lee EW, Cho S, Kang HM, Ali ST, Ryu S. Post-pandemic shift in scarlet fever incidence towards older children in South Korea and Taiwan.Journal of Infection [IF 11.9 (2024), rank 4/137 Infectious diseases]
- Cho UJ, Cho S, Lee H, Kang SK, Kim BI, Nam Y, Lim JS, Lee DH, Ryu S. Transmission dynamics and parameters for pertussis during a school-based outbreak in South Korea, 2024.Emerging Infectious Diseases
- Kim T, Lee S, Ryu S. Quiet quitting and medical education disruption: Lessons from South Korea.Journal of Royal Society of Medicine [IF 10.3 (2024)]
- Kim AR, Achangwa C, Do HN, Jang EY, Nam Y, Cho S, Kim T, Jeong HS, Rhie G, Oh K, Kwon S, Lee S, Lee J, Ryu S. Seroprevalence trends of antibodies to SARS-CoV-2 in South Korea, 2021–2022: a repeated cross-sectional study.Influenza and Other Respiratory Viruses [Journal Front Cover]
- Kim HK, Lim JS, Cho S, Lee WE, Lee M, Kim DW, Kim K, Chiara A , Lee SE, Ryu S. Superspreading potential of SARS-CoV-2 across multiple infection generations.Journal of Infection and Public Health
- Yuan Z, Ge Y, Guo Z, Lei H, Cai J, Musa SS, Ali ST, Xue J, Wang K, Ryu S, Chong KC, He D, Zhao S, Habib AG, Hao Y. Transmission characteristics of Sudan virus disease outbreak in Uganda in early 2025.Journal of Travel Medicine
- Oh J, Kim D , Achangwa C , Ali ST, Ryu S. Identifying Gaps in Research on Infectious Diseases Among Migrants in Korea: Implications for Future Studies.Journal of Korean Medical Science
- Achangwa C, Han C, Lim JS , Cho S, Choi S, Ryu S. Net Reproduction Number as a Real-Time Metric of Population Reproducibility.JMIR Public Health and Surveillance
2024
- Lau YC, Ryu S, Du Z, Wang L, Wu P, Lau EHY, Cowling BJ, Ali ST. Impact of COVID-19 control measures on respiratory syncytial virus and hand-foot-and-mouth disease transmission in Hong Kong and South Korea.Epidemics
- Kim BI, Cho S, Achangwa C, Kim Y, Cowling BJ, Ryu S. Evaluation of an influenza-like illness sentinel surveillance system in South Korea, 2017-2023.Journal of Infection and Public Health [IF 4.7 (2023), rank 40/403 public health]
- Choi YS, Ryu S, Kim RK, Achangwa C, et al. Effectiveness of the Bivalent mRNA COVID-19 Vaccine for Preventing Critical Infection From the SARS-CoV-2 Omicron Variant in the Republic of Korea.Journal of Korean Medical Science
- Cho S, Kim DW, Achangwa C, Oh J , Ryu S. Pertussis in the elderly: plausible amplifiers of persistent community transmission of pertussis in South Korea.Journal of Infection [IF 14.3 (2023), rank 3/132 infectious diseases]
- Kim B, Achangwa C, Cho S , Ahn J, Won J, Do H, Lee D, Yoon B, Kim J, Ryu S. The Hand, Foot, and Mouth Disease Sentinel Surveillance System in South Korea: Retrospective Evaluation Study.JMIR Public Health and Surveillance
- Kim DW, Hao L, Xiao S, Ali ST, Ryu S Vincente CR. Editorial: Impact of public health and social measures for COVID-19 control on infectious disease epidemiology.Frontiers in Public Health
2023
- Choi HW, Achangwa C, ..., Do H, ..., Ryu S, Kee SJ. Pediatric Humoral Immune Responses and Infection Risk after Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection and Two-Dose Vaccination During SARS-CoV-2 Omicron BA.5 and BN.1 Variants Predominance in South Korea.Frontiers in Immunology
- Ryu S, Choi JK, Achangwa C, Cho S, Hwang JH, Hwang JH, Niels B, Lee CS. Temporal dynamics of serum perforin and granzymes in three different clinical stages of virus-induced severe fever with thrombocytopenia syndrome.American Journal of Tropical Medicine & Hygiene
- Rahman MDT, Ryu S, Achangwa C, Hwang JH, Hwang JH, Lee CS. Temporal Dynamics of Serum Perforin and Granzyme during the Acute Phase of SARS-CoV-2 Infection.Vaccines
- Lee D, Choi S, Do H, Achangwa C, Kim MK, Chin BS, Ryu S. Transmissibility of mpox to the general population from travellers returning to South KoreaJournal of Travel Medicine [IF 39.1 (2021), rank 3/94 infectious diseases]
- Achangwa C, Ryu S, Jung JH, Hwang SM. The impact of the COVID-19 pandemic on chlamydia infection in South Korea: a comparison between the pre-pandemic and during-pandemic periods.Frontiers in Public Health
- Han C, Seo H, Cho S, Achangwa C, Ryu S. Impact of travel restrictions for travelers from China on the internal spread of SARS-CoV-2 in South Korea.Journal of Travel Medicine [IF 39.1 (2021)]
- Ryu S, Han C, Ali ST, Achangwa C, Yang BY, Pei S. Association of public health and social measures on the hand-foot-mouth epidemic in South Korea.Journal of Infection and Public Health
2022
- Ali ST, Lau YC, Shan S, Ryu S, Du Z, Wang L, Xu XK, Chen D, Xiong J, Tae J, et al. Prediction of Upcoming Global Infection Burden of Influenza Seasons after Relaxation of Public Health and Social Measures for COVID-19 Pandemic: a modelling studyLancet Global Health [IF 38.9 (2021)]
- Ryu S, Han C, Kim D, Tsang TK, Cowling BJ, Lee S. Association between the relaxation of public health and social measures and transmission of the SARS-CoV-2 Omicron variant in South Korea.JAMA Network Open [IF 13.3 (2021)]
- Han C, Ryu S, Shin H, Kim D, Modchang C. Impact of national lockdown on the suspected SARS-CoV-2 epidemic in terms of the number of fever cases in North Korea.Journal of Travel Medicine [IF 39.1 (2021)]
- Zhao S, Chong MKC, Ryu S, Guo Z, He M, Chen B, Musa SS, Wang J, Wu Y, He D, Wang MH. Characterizing superspreading potential of infectious disease: Decomposition of individual transmissibility.Plos Computational Biology
- Liu Y, Zhao S, Ryu S, Ran J, Fan J, He D. Estimating the incubation period of SARS-CoV-2 Omicron BA. 1 variant in comparison with that during the Delta variant dominance in South Korea.One Health
- Achangwa C, Park H, Ryu S. Incubation period of wild type of SARS-CoV-2 infections by age, gender, and epidemic periods.Frontiers in Public Health
- Ryu S, Kim D, Jung LY, Kim B, Lee CS. Decreased door-to-balloon time in patients with ST-segment elevation myocardial infarction during the early COVID-19 pandemic in South Korea: An observational study.Medicine
- Guo Z, Zhao S, Ryu S, Mok CKP, Hung CT, Chong KC, Yeoh EK. Superspreading potential of infection seeded by the SARS-CoV-2 Omicron BA.1 variant in South Korea.Journal of Infection [IF 38.6 (2021)]
- Achangwa C, Park H, Ryu S, Lee MS. Collateral Impact of Public Health and Social Measures on Respiratory Virus Activity during the COVID-19 Pandemic 2020–2021.Viruses
- Yoo JS, Kim D, Choi HY, Yoo S, Hwang JH, Hwang JH, Choi SH, Chiara A, Ryu S, Lee CS. Prevalence Rate and Distribution of Eschar in Patients with Scrub Typhus.American Journal of Tropical Medicine and Hygiene
- Hwang Y, Kim D, Ryu S. Decreased patient visits for ankle sprain during the COVID-19 pandemic in South Korea: A nationwide retrospective study.Preventive Medicine Reports
- Kim D, Ali ST, Kim S, Jo J, Lim JS, Lee S, Ryu S. Estimation of Serial Interval and Reproduction Number to Quantify the Transmissibility of SARS-CoV-2 Omicron Variant in South Korea.Viruses
- Ryu S, Kim D, Lim JS, Ali ST, Cowling BJ. Serial interval and transmission dynamics during the SARS-CoV-2 Delta variant predominance, South Korea.Emerging Infectious Diseases [IF 16.7 (2021), rank 9/94 infectious diseases]
- Hwang H, Lim JS, Song SA, Achangwa C, Sim W, Kim G, Ryu S. Transmission dynamics of the Delta variant of SARS-CoV-2 infections in South Korea.Journal of Infectious Diseases
- Chang S, Ryu S, Kim D, Chun BC. Decrease in the incidence of chlamydia infection during the COVID-19 pandemic in South Korea.Sexually Transmitted Infections
- Ryu S, Hwang Y, Yoon HB, Chun BC. Self-quarantine non-compliance during the COVID-19 pandemic in South Korea.Journal of Disaster Medicine and Public Health
2021
- Lim JS, Noh E, Shim E, Ryu S. Temporal changes in the risk of superspreading events of coronavirus disease 2019.Open Forum Infectious Diseases
- Ryu S, Ali ST, Noh E, Kim D, Lau EHY, Cowling BJ. Transmission dynamics and control of two epidemic waves of SARS-CoV-2 in South Korea.BMC Infectious Diseases
- Ryu S, Hwang Y, Ali ST, Kim DS, Klein EY, Lau EHY, Cowling BJ. Decreased use of broad-spectrum antibiotics during COVID-19 epidemic in South Korea.Journal of Infectious Diseases [IF 7.7 (2021), rank 19/94 infectious diseases]
- Lim GW, Ryu S, Park J, Lee EJ, Lee KJ, Tae J, Hwang Y, Kim DS. Changes of antibiotic prescribing pattern and its resistance to E. Coli in South Korea: a 12-year retrospective observational study.Scientific Reports
2020
- Lim JS, Cho SI, Ryu S, Pak SI. Interpretation of the Basic and Effective Reproduction Number.Journal of Preventive Medicine & Public Health
- Ryu S, Cowling BJ. Human influenza epidemiology. Cold Spring Harbor Perspectives in Medicine
- Ryu S, Ali ST, Jang C, Kim B, Cowling BJ. Effect of Nonpharmaceutical interventions on Transmission of Severe Acute Respiratory Syndrome Coronavirus 2, South Korea, 2020.Emerging Infectious Diseases
- Ryu S, Ali ST, Cowling BJ, Lau EHY. Effects of school holidays on seasonal influenza in South Korea, 2014-2016.Journal of Infectious Diseases
- Lee H, Kim K, Choi K, Hong S, Son H, Ryu S. Incubation period of the coronavirus disease 2019 (COVID-19) infections in Busan, South Korea.Journal of Infection and Chemotherapy
- Ryu S, Ali ST, Lim JS, Chun BC. Estimation of the Excess COVID-19 Cases in Seoul, South Korea by the Students Arriving from China. International Journal of Environmental Research and Public Health
- Kim HJ, Hwang HS, Choi YH, Song HY, Park JS, Yun CY, Ryu S. The delay in COVID-19 confirmation among cases from a religious group in South Korea.Journal of Preventive Medicine & Public Health
- Xiao J, Shiu EYC, Gao H, Wong JY, Fong MW, Ryu S, Cowling BJ. Nonpharmaceutical Measures for Pandemic Influenza in Nonhealthcare Settings-Personal Protective and Environmental Measures. Emerging Infectious Diseases
- Fong MW, Gao H, Wong JY, Shiu EYC, Xiao J, Fong MW, Ryu S, Cowling BJ. Nonpharmaceutical Measures for Pandemic Influenza in Nonhealthcare Settings-Social Distancing Measures. Emerging Infectious Diseases
- Ryu S, Gao H, Wong JY, Shiu EYC, Xiao J, Fong MW, Cowling BJ. Nonpharmaceutical Measures for Pandemic Influenza in Nonhealthcare Settings-International Related Measures. Emerging Infectious Diseases
- Ryu S, Chun BC, Korean Society of Epidemiology 2019-nCoV Task Force Team. An interim review of epidemiological characteristics of 2019 novel coronavirus. Epidemiology and Health
- Ryu S.Turnover intention among field epidemiologists in South Korea. International Journal of Environmental Research and Public Health
2019
- Ryu S, Cowling BJ, Wu P, Olesen S, Fraser C, Lipsitch M, Grad YH. Case-based surveillance of antimicrobial resistance with full susceptibility profiles.JAC-Antimicrobial resistance.
- Ryu S, Kim JJ, Cowling BJ, Kim C. Surveillance and public health response for travelers returning from MERS-CoV affected countries to Gyeonggi Province, Korea, 2016-2017.Journal of Travel Medicine and Infectious Diseases.
- Ryu S, Kim YW, Kim S, Liao Q, Cowling BJ, Lee CS. Occupational stress among field epidemiologists in field epidemiology training programs from the public health sector. International Journal of Environmental Research and Public Health.
- Kim S, Kim YW, Ryu S, Kim JW. Norovirus outbreak in a kindergarten: human to human transmission among children.Infection and Chemotherapy.
- Ryu S, Chow A, Chun BC. Surveillance for Zika virus infection in travelers returning to the Republic of Korea.Journal of Travel Medicine and Infectious Diseases
- Lim JS, Min KD, Ryu S, Hwang SS, Cho SI. Spatial analysis to assess the relationship between human and bovine brucellosis in South Korea, 2005-2010.Scientific Report
- Ryu S, Won SA, Uh J, Song JY. Hepatitis A virus infection from a contaminated tap of ground water facility in a neighborhood park, Republic of Korea. Infection and Chemotherapy.
- Ryu S, Soares Magalhaes RJ, Chun BC. The impact of expanded brucellosis surveillance in beef cattle on human brucellosis in Korea: an interrupted time-series analysis.BMC Infectious Diseases
2018
- Ryu S, Kim CK, Kim K, Woo SH, Chun BC. Serosurveillance of avian influenza (H5N6) virus infection in poutlry farmers, Gyeonggi Province, Republic of Korea, 2016-2017.International Journal of Infectious Diseases
- Ryu S, Klein EY, Chun BC. Temporal association between antibiotic use and resistance in Klebsiella pneumoniae at a tertiary care hospital. Antimicrobial Resistance and Infection Control
- Ryu S, Kim BI, Chun BC. An outbreak of Respiratory tract infection due to Respiratory syncytial virus-B in a postpartum center. Journal of Infection and Chemotherapy
- Ryu S, Kim S, Kim BI, Klein EY, Yoon YK, Chun BC. Temporal relationship between antibiotic use and respiratory virus activities in the Republic of Korea: A time series analysis.Antimicrobial Resistance and Infection Control
- Kim JJ, Ryu S, Lee H. Foodborne Illness Outbreaks in Gyeonggi Province, Korea, Following Seafood Consumption Potentially Caused by Kudoa septempunctata between 2015 and 2016.Osong Public Health and Research Perspectives.
- Ryu S, Chun BC. Outbreak investigation of scarlet fever in a kindergarten.Infection and Chemotherapy.
- Ryu S, Lim JS, Cowling BJ, Chun BC. Low risk of avian influenza A (H5N6) transmission to depopulation workers in Korea.Influenza & Other Respiratory Virus
- Ryu S, Kim JJ, Chen MY, Jin H, Lee HK, Chun BC. Outbreak investigation of pertussis in an elementary school: a case-control study among vaccinated students.Clinical and Experimental Vaccine Research.
2017
- Ryu S, Kim BI, Lim JS, Tan CS, Chun BC. Onehealth perspectives for emerging public health threat.Journal of Preventive Medicine and Public Health.
- Ryu S, Yang K, Chun BC. Community-acquired Legionnaires’ Disease in a Newly Constructed Apartment Building. Journal of Preventive Medicine and Public Health.
- Ryu S, Lau CL, Chun BC. The impact of Livestock Manure Control Policy on human leptospirosis in Republic of Korea using interrupted time series analysis.Epidemiology & Infection
2016
- Ryu S. The New Korean action plan for containment of antimicrobial resistance. Journal of Global Antimicrobial Resistance
- Kim BI, Ki H, Park S, Cho E, Chun BC. Effect of Climatic Factors on Hand, Foot, and Mouth Disease in South Korea, 2010-2013.Plos One.
- Ryu S, Head MG, Kim BI, Cho E. Are we investing wisely? A systematic analysis of nationally funded antimicrobial resistance projects in Korea, 2003-2013.Journal of Global Antimicrobial Resistance.