Selected Publications
Hwang H, Lim JS, Song SA, Chiara A, Sim W, Kim G, Ryu S. Transmission dynamics of the Delta variant of SARS-CoV-2 infections in South Korea. Journal of Infectious Diseases. 2022
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. 2021
Ryu S, Ali ST, Cowling BJ, Lau EHY. Effects of school holidays on seasonal influenza in South Korea, 2014-2016. Journal of Infectious Diseases. 2020
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 Korea Journal 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 study Lancet 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.