Jae-Ki Choi

ORCID: 0000-0003-4666-960X
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Research Areas
  • Neutropenia and Cancer Infections
  • Antifungal resistance and susceptibility
  • Fungal Infections and Studies
  • Herpesvirus Infections and Treatments
  • Antibiotic Resistance in Bacteria
  • Hepatitis Viruses Studies and Epidemiology
  • Bacterial Identification and Susceptibility Testing
  • Urinary Tract Infections Management
  • Animal Virus Infections Studies
  • Pneumocystis jirovecii pneumonia detection and treatment
  • Infectious Diseases and Mycology
  • Syphilis Diagnosis and Treatment
  • Mycobacterium research and diagnosis
  • Infections and bacterial resistance
  • Bartonella species infections research
  • SARS-CoV-2 and COVID-19 Research
  • Antibiotic Use and Resistance
  • Sinusitis and nasal conditions
  • Antimicrobial Resistance in Staphylococcus
  • Venous Thromboembolism Diagnosis and Management
  • Pediatric health and respiratory diseases
  • Acne and Rosacea Treatments and Effects
  • Polyomavirus and related diseases
  • Oral health in cancer treatment
  • Glioma Diagnosis and Treatment

Catholic University of Korea
2015-2024

Bucheon St. Mary's Hospital
2016-2023

Institut de Recherche Vaccinale
2017

St. Paul's Hospital
2015

Woosuk University
2010

Stenotrophomonas maltophilia causes serious infections in immunocompromised hosts. Here, we analyzed the clinical characteristics of S. bloodstream infection (BSI) patients with hematologic malignancies and evaluated vitro synergistic effects antimicrobial combinations. We retrospectively reviewed all consecutive episodes BSIs adult from June 2009 to May 2014, susceptibility synergy tests using high-throughput bioluminescence assay performed for available isolates. Among 11,004 admissions...

10.1186/s12879-015-0801-7 article EN cc-by BMC Infectious Diseases 2015-02-17

Global data on the epidemiology and susceptibility of Aspergillus are crucial in management invasive aspergillosis. Here, we aimed to determine characteristics clinical environmental isolates, focusing mainly hematologic malignancy patients.

10.1128/jcm.02023-18 article EN cc-by Journal of Clinical Microbiology 2019-04-25

Abstract Background Numerous vaccine strategies are being advanced to control SARS-CoV-2, the cause of COVID-19 pandemic. EuCorVac-19 (ECV19) is a recombinant protein nanoparticle that displays SARS-CoV-2 receptor-binding domain (RBD) on immunogenic nanoliposomes. Methods Initial study phase 2 randomized, observer-blind, placebo-controlled trial assess immunogenicity, safety, and tolerance ECV19 was carried out between July October 2021. Two hundred twenty-nine participants were enrolled at...

10.1186/s12916-022-02661-1 article EN cc-by BMC Medicine 2022-11-30

Abstract Background Vancomycin-resistant Enterococcus (VRE) bloodstream infection (BSI) is generally associated with the delayed administration of adequate antibiotics. The identification risk factors and outcomes VRE BSI necessary for establishing strategies managing neutropenic fever in patients hematological malignancies. Methods We retrospectively analysed consecutive cases enterococcal neutropenia after chemotherapy or stem cell transplantation between July 2009 December 2011 at a...

10.1186/1471-2334-13-504 article EN cc-by BMC Infectious Diseases 2013-10-29

Background: Carbapenemase-producing Enterobacteriaceae (CPE) are Gram-negative bacteria with increasing prevalence of infection worldwide.In Korea, 25 cases CPE isolates were reported by the Korea Centers for Disease Control and Prevention in 2011.Most detected mainly at tertiary referral hospitals.We analyzed risk factors carbapenem-resistant (CRE) a mid-sized community-based hospital Korea. Materials Methods:We retrospectively all consecutive episodes from January 2013 to February 2014.CRE...

10.3947/ic.2016.48.3.166 article EN cc-by-nc Infection and Chemotherapy 2016-01-01

The risk factors and clinical impacts of coronavirus disease 2019 (COVID-19)-associated pulmonary aspergillosis (CAPA) remain controversial, no data have been reported in Korea. This study aimed to investigate the epidemiology importance CAPA diagnostic efforts identify predictors on outcomes.Between January 2020 May 2021, severely critically ill COVID-19 patients were extracted from seven hospitals Catholic Medical Center through a warehouse. Corticosteroid use was subcategorized into total...

10.3904/kjim.2022.069 article EN cc-by-nc The Korean Journal of Internal Medicine 2022-05-25

EuCorVac-19 (ECV-19), an adjuvanted liposome-displayed receptor binding domain (RBD) COVID-19 vaccine, previously reported interim Phase 2 trial results showing induction of neutralizing antibodies 3 weeks after prime-boost immunization. The objective this study was to determine the longer-term antibody response vaccine.To assess immunogenicity 6 and 12 months vaccination, participants in (NCT04783311) were excluded if they: 1) withdrew, 2) infection or additional 3) exhibited increasing...

10.1016/j.ijid.2023.11.004 article EN cc-by International Journal of Infectious Diseases 2023-11-07

Background:The aim of this study was to investigate the clinical features and epidemiology bloodstream infections (BSIs) in 2 distinctive hematological wards Catholic Blood Marrow Transplantation (BMT) center. Materials Methods:We retrospectively reviewed medical data patients who developed BSIs from June 2009 May 2010 hematologic at BMT center.Ward A is a 44-bed unit mainly conducting conventional high dose chemotherapy ward B 23-bed exclusively BMT.Results: Overall, 222 BSI episodes were...

10.3947/ic.2013.45.1.51 article EN cc-by-nc Infection and Chemotherapy 2013-01-01

Incidence, epidemiology, and risk factors of invasive fungal diseases (IFDs) in allogeneic hematopoietic stem cell transplant (allo-HSCT) recipients can vary from different cohorts countries. Therefore, we performed a nationwide study to establish proper antifungal prophylaxis strategies based on stratifications IFDs after all-HSCT Korea (RISK study). This was multicenter, retrospective, observational Korea. All consecutive adult patients who received allo-HSCT 2013 were included. The...

10.1016/j.bbmt.2017.06.012 article EN cc-by-nc-nd Biology of Blood and Marrow Transplantation 2017-06-28

Background: In South Korea, the one-dose varicella vaccine was included in National Immunization Program for children aged 12–15 months 2005, and coverage reached >95%. The impact of vaccination on herpes zoster (HZ) investigated, accounting demographic changes over time.Methods: We calculated crude age-sex standardized incidence rates (IRs) age-specific IRs HZ from 2003 to 2015, using Health Information Database including approximately 50 million Koreans. annual rate ratios (IRRs) were a...

10.1080/21645515.2019.1603985 article EN Human Vaccines & Immunotherapeutics 2019-05-07

Vaccination with an adenoviral vector vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can result in the rare development of thrombosis thrombocytopenia mediated by platelet-activating antibodies platelet factor 4 (PF4). This is a life-threating condition that may be accompanied bleeding due to cerebral venous sinus or splanchnic vein. Herein, we describe first fatal case Korea, presenting intracranial hemorrhage caused thrombosis. A 33-year-old Korean man...

10.3346/jkms.2021.36.e223 article EN cc-by-nc Journal of Korean Medical Science 2021-01-01

Background The risk of developing tuberculosis (TB) in allogeneic hematopoietic stem cell transplantation (HSCT) recipients is expected to be relatively high an intermediate TB burden country. This single-center retrospective study was conducted investigate factors and the incidence after HSCT. Methods From January 2004 March 2011, 845 adult patients were enrolled. Starting April 2009, given isoniazid (INH) prophylaxis based on interferon-γ release assay results. analyzed before compared it...

10.1371/journal.pone.0173250 article EN cc-by PLoS ONE 2017-03-09

Breakthrough invasive fungal diseases (bIFDs) during voriconazole treatment are concerning, as they associated with high rates of mortality and pathogen distribution. To evaluate the prevalence, incidence, patient characteristics, including IFD events, overall bIFDs for aspergillosis (IA). We retrospectively analyzed medical records consecutive patients who had undergone IA bIFD events between January 2011 December 2015. Eleven occurred in 9 patients. The prevalence incidence were 2.25%...

10.1093/mmy/myw067 article EN cc-by-nc Medical Mycology 2016-08-25

Extended-spectrum β-lactamase-producing Escherichia coli (ESBL-EC) is increasingly identified as a cause of acute pyelonephritis (APN) among patients without recent health care contact, i.e., community-associated APN. This case-control study compared 75 cases ESBL-EC APN (CA-ESBL) to 225 controls non-ESBL-EC (CA-non-ESBL) identify the risk factors for acquisition and investigate impact ESBL on treatment outcomes (CA-APN) caused by E. at Korean hospital during 2007 2013. The baseline...

10.1128/aac.04821-14 article EN Antimicrobial Agents and Chemotherapy 2015-03-11

Although yeast bloodstream infections (BSIs) are increasingly being reported in patients with hematological malignancies undergoing antifungal therapy, clinical information regarding breakthrough is scarce. The aim of this study was to determine the risk factors for and outcomes BSIs era newer agents. Between 2011 2014, all consecutive who developed were included a case-control wherein (cases) de novo (controls) compared. Of 49 BSIs, 21 (43%) met criteria infections. proportions Candida...

10.1093/mmy/myx038 article EN cc-by-nc Medical Mycology 2017-04-17

Dasatinib, a tyrosine kinase inhibitor, is widely used for patients with chronic myeloid leukemia and Philadelphia chromosome-positive acute lymphoblastic leukemia. Although the drug has potent immunosuppressive effect, infectious complications during dasatinib treatment have been reported rarely. We describe five who developed cytomegalovirus (CMV) colitis treatment, in whom was initially confused other causes. The patients, three leukemia, two were diagnosed CMV based on endoscopic...

10.3947/ic.2018.50.2.153 article EN cc-by-nc Infection and Chemotherapy 2018-01-01

In South Korea, despite the implementation of a universal single-dose vaccination program for children aged 12–15 months in 2005, varicella incidence rate remains significant. Prior case-control studies have reported that currently used vaccines are extremely inefficacious. We estimated vaccine effectiveness (VE) by fitting dynamic transmission model to age-specific data from 2007 2015 and available coverage data. The initial efficacy primary failure rates were be 61.1% 38.9%, respectively....

10.1080/21645515.2022.2085468 article EN cc-by-nc-nd Human Vaccines & Immunotherapeutics 2022-06-15

While the epidemiology and clinical differences of various Candida spp. has been relatively well-identified, data regarding invasive aspergillosis (IA) caused by different Aspergillus are insufficient. We aimed to determine culture-positive pulmonary (IPA) compare characteristics outcomes fumigatus IPA with those non-fumigatus in patients hematologic diseases. All consecutive cases from 2011 2015 were reviewed retrospectively. There 430 proven/probable 76 IPA. Excluding multiple species...

10.1097/md.0000000000008841 article EN cc-by-nc Medicine 2017-12-01

With the rise in multidrug-resistant (MDR) bacterial infections, there has been increasing interest combinations of ≥2 antimicrobial agents with synergistic effects. We established an MDR strain library to screen for vitro synergy by using a broth microdilution checkerboard method and high-throughput luciferase-based cell viability assay. In total, 39 strains, including 23 carbapenem-resistant gram-negative bacteria, 9 vancomycin-intermediate Staphylococcus aureus, 7 vancomycin-resistant...

10.1089/mdr.2015.0251 article EN cc-by-nc Microbial Drug Resistance 2016-03-14

Because primary antifungal prophylaxis is widely used for immunocompromised hosts, the incidences of unusual fungal infections have increased. Trichosporon asahii has emerged as an important life-threatening opportunistic systemic pathogen because increased use cytotoxic or immunosuppressant agents, along with high mortality rates. Here, we describe a case catheter-related T. bloodstream infection multiple septic skin nodules in both arms and legs patient who was neutropenic period after...

10.3947/ic.2018.50.2.138 article EN cc-by-nc Infection and Chemotherapy 2018-01-01

PurposePosaconazole is effective for the prophylaxis of invasive fungal infections (IFIs) in patients with acute myeloid leukemia or myelodysplastic syndrome during remission induction chemotherapy. However, a cost–benefit analysis posaconazole versus fluconazole itraconazole has not been conducted Korea.MethodsWe retrospectively reviewed data all consecutive who received primary antifungal chemotherapy our leukemia/myelodysplastic cohort from December 2010 to November 2013. Patient...

10.1016/j.clinthera.2015.06.014 article EN cc-by-nc-nd Clinical Therapeutics 2015-07-16

Streptococcus suis is a zoonotic pathogen that can cause severe systemic infections in humans as well swine. In recent decades, the number of S. has increased, particularly Southeast Asia. Although most cases human are reported sporadic, few outbreaks have been noted. Interestingly, these proposed to be associated with concomitant Korea, four sporadic and non-fatal infection reported. We herein report case life-threating sepsis for first time Korea. The patient was healthy pig farmer,...

10.3947/ic.2018.50.3.274 article EN cc-by-nc Infection and Chemotherapy 2018-01-01
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