Ji Yeon Sung

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BACKGROUND This study was performed to evaluate the associations of newly recognized viruses, namely, human metapneumovirus (hMPV), human coronavirus (HCoV)-NL63, and human bocavirus (HBoV) with lower respiratory tract infections (LRTIs) in previously healthy children. METHODS To determine the prevalences of 11 viruses--respiratory syncytial virus (RSV),(More)
Widespread emergence of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) has changed the epidemiology of S. aureus infections. We examined the molecular types and antibiotic susceptibility of CA-MRSA and health care-associated MRSA (HA-MRSA) among Korean children. MRSA isolates were obtained from patients admitted to(More)
OBJECTIVES This study was performed to investigate the molecular characterization of methicillin-resistant Staphylococcus aureus (MRSA) isolated from the anterior nares of Korean children attending daycare centers. METHODS During September and October 2008, a survey of nasal carriage of MRSA was conducted among healthy children who were attending daycare(More)
Mycobacterium longobardum is a slow-growing, nontuberculous mycobacterium that was first characterized from the M. terrae complex in 2012. We report a case of M. longobardum induced chronic osteomyelitis. A 71-yr-old man presented with inflammation in the left elbow and he underwent a surgery under the suspicion of tuberculous osteomyelitis. The pathologic(More)
BACKGROUND Human coronavirus NL63 (HCoV-NL63) has recently been implicated as a common cause of croup in children. This study was performed to evaluate viruses associated with croup in children, with an emphasis on HCoV-NL63. METHODS Nasopharyngeal aspirates were prospectively collected from 182 children hospitalized with croup at Seoul National(More)
The genus Moraxella comprises approximately 20 species of aerobic, non-motile, oxidase-positive, and gram-negative cocco-bacilli. M. osloensis are also occasionally isolated from clinical samples [1]. M. osloensis is a commensal microorganism in the human respiratory tract, but has also been reported as a rare causative pathogen in human infections [1-12].(More)
Dear Editor Flavobacterium species are nonfastidious, oxidase-positive, glucose nonfermenting, gram-negative rods. Few Flavobacterium species have been extensively studied [1]. Flavobacterium ceti was first isolated from the lung and liver of two beaked whales, as described in 2007 by Vela et al. [2]. Flavobacterium species are mainly found in aquatic(More)
BACKGROUND The protein C receptor (PROCR), toll-like receptor (TLR) and L-selectin leukocyte receptor play roles in systemic inflammatory response including disseminated intravascular coagulation (DIC). Expression of these receptors, which mediate systemic immune or coagulation responses, is tightly regulated by physiologic or pathologic signals. We(More)
A total of 279 isolates of Escherichia coli (n = 128) and Klebsiella pneumoniae (n = 151) were obtained from blood samples from children at the Seoul National University Children's Hospital, Seoul, Korea from 1999 to 2007. Five plasmid-mediated quinolone resistance (PMQR) genes, qnrA, qnrB, qnrS, qepA, and aac(6')-Ib-cr, and the minimal inhibitory(More)
BACKGROUND Rapid detection of carbapenemase-producing gram-negative bacilli (GNB) is required for optimal treatment of infected patients. We developed and assessed a new disk carbapenemase test (DCT). METHODS Paper disks containing 0.3 mg of imipenem and bromothymol blue indicator were developed, and the performance of the DCT were evaluated by using 742(More)