Description of sp. nov., isolated from pig faeces.

Two Gram-stain-negative cocci anaerobes were isolated from pig faeces and designated as strains YH-vei2232 and YH-vei2233. Phylogenetic analysis using 16S rRNA gene sequences revealed that the isolates were most closely related to KCTC 5967, with 97.0% similarity.

Standardization of an antimicrobial resistance surveillance network through data management.

Introduction: The rapid spread of COVID-19 worldwide within 2 months demonstrated the vulnerability of the world's population to infectious diseases. In 2015, the Global Antimicrobial Resistance and Use Surveillance System (GLASS) was launched to combat antimicrobial resistance (AMR). However, there has been no comprehensive assessment of the decade-long global battle against AMR based on GLASS data.

Fitness costs of Tn1546-type transposons harboring the vanA operon by plasmid type and structural diversity in Enterococcus faecium.

Background: This study analyzed the genetic traits and fitness costs of vancomycin-resistant Enterococcus faecium (VREfm) blood isolates carrying Tn1546-type transposons harboring the vanA operon.

Methods: All E. faecium blood isolates were collected from eight general hospitals in South Korea during one-year study period.

Laboratory Preparation for Digital Medicine in Healthcare 4.0: An Investigation Into the Awareness and Applications of Big Data and Artificial Intelligence.

Background: Healthcare 4.0. refers to the integration of advanced technologies, such as artificial intelligence (AI) and big data analysis, into the healthcare sector.

Navigating the microbial community in the trachea-oropharynx of breast cancer patients with or without neoadjuvant chemotherapy (NAC) endotracheal tube: has NAC caused any change?

Background: We compare the diversity and niche specificity of the microbiome in the trachea-oropharynx microbiome of malignant breast neoplasm with or without neoadjuvant chemotherapy (NAC) NGS analysis.

Methods: We prospectively collected a total of 40 endotracheal tubes intubated from subjects, of whom 20 with NAC treated breast cancer (NAC group) and 20 with breast cancer without NAC (Non-NAC group). We generated 16S rRNA-based microbial profiles in IlluminaTM platform and alpha diversity indices were compared between groups.

Clinical usefulness of anaerobic blood culture in pediatric patients with bacteremia.

Objectives: The purpose of this study is to evaluate the usefulness of anaerobic blood culture in pediatric patients by comparing the detection rate and distribution of bacteria between aerobic and anaerobic blood culture bottles.

Methods: A retrospective analysis was conducted on 11,664 blood cultures obtained from children under the age of 14 between January 2013 and June 2020. The positive rate of total, aerobic, and anaerobic blood culture, as well as the species distribution of each blood culture bottle, were investigated.

The novel immunobiotic S-45-5 displays broad-spectrum antiviral activity and by inducing immune modulation.

is known as a probiotic butyric acid bacterium that can improve the intestinal environment. In this study, we isolated a new strain of from infant feces and evaluated its physiological characteristics and antiviral efficacy by modulating the innate immune responses and . The isolated S-45-5 showed typical characteristics of including bile acid resistance, antibacterial ability, and growth promotion of various lactic acid bacteria.

Description and comparative genome analysis of Hallella absiana sp. nov., isolated from pig feces.

Objective: The genus Hallella was described within Bacteroidaceae, and then reclassified within Prevotellaceae based on its phenotypic and phylogenetic description. It is associated with degradation of carbohydrate. However, some species of Hallella have pathobiotic properties, and are involved in infections and chronic inflammatory disorders.

sp. nov., isolated from a pig farm faeces dump.

A lactic acid bacterium isolated from pig faeces was characterized using a polyphasic approach. The strain was Gram-stain-positive, rod-shaped, and facultative anaerobic. Phylogenetic analysis of the 16S rRNA gene sequence indicated that the isolate belonged to the genus .

sp. nov., isolated from pig farm faeces dump.

A lactic acid bacteria isolated from pig faeces was characterized using a polyphasic approach. Cells of the strain were Gram-stain-positive, rod-shaped and facultative anaerobic. Phylogenetic analysis of 16S rRNA gene sequence indicated that the isolate belonged to the genus ; however, the similarity to other homologues within the genus was <98 %.

Performance of MALDI-TOF Mass Spectrometry (VITEK MS) in the Identification of Species.

is a major pathogen causing foodborne infections in humans. Salmonella isolates are identified using biochemical and serological tests, including automated systems such as the VITEK2 system. However, there are few reports on identification using VITEK MS.

Emergence of NDM-1-producing Sequence Type 773 Clone: Shift of Carbapenemase Molecular Epidemiology and Spread of 16S rRNA Methylase Genes in Korea.

Imipenemase (IMP)-6-producing sequence type (ST) 235 is a dominant clone of carbapenemase-producing (CPPAE) in Korea. As part of the Antimicrobial Resistance Surveillance System in Korea, we found an increase in the carbapenem resistance rate of isolates from blood cultures and a shift in the molecular epidemiology of CPPAE. A total of 212 non-duplicated blood isolates were obtained from nine general hospitals and two nursing homes.

Characteristics of Escherichia coli Urine Isolates and Risk Factors for Secondary Bloodstream Infections in Patients with Urinary Tract Infections.

Escherichia coli is responsible for more than 80% of all incidences of urinary tract infections (UTIs). We assessed a total of 636 cases of patients with E. coli UTIs occurring in June 2019 in eight tertiary hospitals in South Korea for the traits of patients with E.

Association of Carbapenemase-Producing Detected in Stream and Clinical Samples.

Background: The spread of carbapenem-resistant (CRE) strains has caused treatment failure and is a worldwide threat to public health. However, there are limited reports on the prevalence of carbapenemase-producing (CPE) in aquatic environments and its association with clinical isolates. This study aimed to investigate the prevalence of CPE in a stream environment and its genetic relationship with clinical isolates in Korea.

Comparison of Six Antifungal Susceptibilities of 11 Species Using the VITEK2 AST-YS08 Card and Broth Microdilution Method.

We used a Vitek 2 AST-YS08 (YS08) system and the broth microdilution method (BMD) adopted by the Clinical and Laboratory Standards Institute (CLSI) to compare the susceptibility of 184 isolates of 11 species to fluconazole, voriconazole, micafungin, caspofungin, amphotericin B, and flucytosine. In Candida albicans, the categorical agreement (CA) was 79.2%, 91.