Chryseobacterium spp. belongs to the Flavobacteriaceae family and is a rod-shaped gram-negative, glucose non-fermenting, non-motile bacterium ubiquitous in the environment. In humans, Chryseobacterium may be responsible for infections such as urinary tract infections (UTI) and ventriculitis with a pathogenic burden increasing in recent years. Chryseobacterium gallinarum was isolated for the first time in 2014 in a pharyngeal scrape sample of chicken and, until now, only one case of human UTI has been described in a pregnant 20-year-old Indian patient. Herein, we report the first case of bloodstream infection caused by C. gallinarum in a 67-year-old female burn patient, correctly identified by 16S-rRNA sequencing and successfully treated with cefepime and fosfomycin.

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BACKGROUND Elizabethkingia meningoseptica is an emerging pathogen in hospital environments. Immunocompromised individuals have a high risk of infections caused by E. meningoseptica, especially after transplantation. E. meningoseptica is associated with prolonged hospital stays and high mortality. In addition, E. meningoseptica is commonly resistant to many antibiotics used for gram-negative bacterial infections. We introduce the first case of E. meningoseptica bacteremia in a recipient of a liver transplant in Vietnam. CASE REPORT A 55-year-old woman with end-stage liver disease due to biliary cirrhosis underwent living donor liver transplantation at the 108 Military Central Hospital. On day 3 after transplantation, the patient had an acute cellular rejection, and corticosteroid pulse therapy was used. On day 7 after transplantation, the patient had a fever and an increased white blood cell count and C-reactive protein level. Blood cultures were positive for E. meningoseptica. Intravenous levofloxacin was administered for 10 days. The patient showed an excellent treatment response to the antibiotic therapy and was discharged. CONCLUSIONS E. meningoseptica, a multidrug-resistant gram-negative bacteria, can be considered an emerging pathogen in the hospital environment, especially in patients receiving organ transplants. Early recognition helps physicians to improve patient outcomes.

BACKGROUND: Chryseobacterium arthrosphaerae is a gram-negative bacteria, known for its intrinsic multidrug resistance, which can lead to treatment difficulties.
UNASSIGNED: A 56-year-old male had an indwelling external ventricular drainage catheter for 6 months and had been frequently treated with antibiotics for nosocomial infections. He showed cerebrospinal fluid pleocytosis and an abrupt fever during hospitalization.
METHODS: He was diagnosed as a ventriculitis caused by Chryseobacterium arthrosphaerae (C arthrosphaerae).
METHODS: Initially, we used ciprofloxacin as the backbone in combination with minocycline (and rifampin). However, fever and pleocytosis persisted, and improvement was slow. We then switched the minocycline and rifampin regiment to trimethoprim/sulfamethoxazole. Following this switch of antibiotics, the patient\'s pleocytosis rapidly improved, allowing the replacement of his external ventricular drainage catheters. C arthrospharae was no longer growing in cerebrospinal fluid and he was recovered from ventriculitis.
RESULTS: The patient remains alive without any incidence of C arthrosphaerae recurrence.
CONCLUSIONS: We propose trimethoprim/sulfamethoxazole alone or in combination with ciprofloxacin to be good candidates for the treatment of ventriculitis by C arthrosphaerae.

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Infections due to Elizabethkingia meningoseptica, a Gram-negative oxidative bacterium are frequently founded in neonatal and immunocompromised individuals. The notable characteristic of this organism is its multi-drug resistance to common antibiotics used for infections caused by Gram-negative bacteria. We report a rare case of complicated pericardial effusion due to E. meningoseptica in a 2-year-old boy, who was admitted with chief complaints of fever and tachypnea (mentioned by his parents) and suffered from a rare lung malignancy (lymphangioleiomyomatosis). He was successfully treated with vancomycin.  E. meningoseptica infection is a rare situation in immunocompetent hosts, and we concluded that this infection was probably originated from device medicine or even hands of healthcare workers.

Despite years of research, the glycome of the model nematode Caenorhabditis elegans is still not fully understood. Certainly, data over the years have indicated that this organism synthesizes unusual N-glycans with a range of galactose and fucose modifications on the Man2-3GlcNAc2 core region. Previously, up to four fucose residues were detected on its N-glycans, despite these lacking the fucosylated antennae typical of many other eukaryotes; some of these fucose residues are capped with hexose residues as shown by the studies of us and others. There have, though, been contrasting reports regarding the maximal number of fucose substitutions in C. elegans, which in part may be due to different methodological approaches, including use of either peptide:N-glycosidases F and A (PNGase F and A) or anhydrous hydrazine to cleave the N-glycans from glycopeptides. Here we compare the use of hydrazine with that of a new enzyme (rice PNGase Ar) and show that both enable release of glycans with more sugar residues on the proximal GlcNAc than previously resolved. By use of exoglycosidase sequencing, in conjunction with high-performance liquid chromatography (HPLC) and matrix-assisted laser desorption ionization time-of-flight tandem mass spectrometry (MALDI-TOF MS/MS), we now reveal that actually up to five fucose residues modify the core region of C. elegans N-glycans and that the α1,3-fucose on the reducing terminus can be substituted by an α-linked galactose. Thus, traditional PNGase F and A release may be insufficient for release of the more highly core-modified N-glycans, especially those occurring in C. elegans, but novel enzymes can compete against chemical methods in terms of safety, ease of cleanup, and quality of resulting glycomic data.

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