A5040427649- Diphtheria, Corynebacterium, and Tetanus
- Bacterial Identification and Susceptibility Testing
- Genomics and Phylogenetic Studies
- Mycobacterium research and diagnosis
- Legionella and Acanthamoeba research
- Streptococcal Infections and Treatments
- Infective Endocarditis Diagnosis and Management
- Bacterial biofilms and quorum sensing
- Veterinary medicine and infectious diseases
- Antifungal resistance and susceptibility
- Infections and bacterial resistance
- Clostridium difficile and Clostridium perfringens research
- Microbial infections and disease research
- Animal Nutrition and Physiology
- Antibiotic Resistance in Bacteria
- Bacteriophages and microbial interactions
- Actinomycetales infections and treatment
- Oral microbiology and periodontitis research
- Microbial Community Ecology and Physiology
- Neutrophil, Myeloperoxidase and Oxidative Mechanisms
- Vibrio bacteria research studies
- Bacillus and Francisella bacterial research
- Infectious Diseases and Mycology
- Pneumocystis jirovecii pneumonia detection and treatment
- Probiotics and Fermented Foods
Public Health Agency of Canada
2014-2024
University of Manitoba
2013-2022
Canadian Science Centre for Human and Animal Health
2002-2022
Government of Canada
2021
Health Canada
1995-2019
Institut Pasteur
2010
Virginia Department of Health
2010
Centers for Disease Control and Prevention
2010
National Institute of Infectious Diseases
2010
University of Warwick
2010
ABSTRACT We describe the development of a multilocus sequence typing (MLST) scheme for Corynebacterium diphtheriae , causative agent potentially fatal upper respiratory disease diphtheria. Global changes in diphtheria epidemiology are highlighted by recent epidemic former Soviet Union (FSU) and also emergence nontoxigenic strains causing atypical disease. Although numerous techniques have been developed to characterize C. their use is hindered limited portability and, some instances, poor...
Cellular fatty acid (CFA) compositions of 561 asporogenous, aerobic gram-positive rods were analyzed by gas-liquid chromatography as an adjunct to their identification when grown on blood agar at 35 degrees C. The organisms could be divided into two groups. In the first group (branched-chain type), which included coryneform CDC groups A-3, A-4, and A-5; some strains B-1 B-3; "Corynebacterium aquaticum"; Brevibacterium liquefaciens; Rothia dentocariosa; Listeria spp., had sizable quantities...
Arthrobacter spp. are very widely distributed in the environment (e.g., soil) but have not been described as causing disease humans. Over a 6-year period, two reference laboratories isolated or received 11 strains which were eventually identified belonging to genus Arthrobacter. These had initially Centers for Disease Control and Prevention coryneform group B-1 B-3 bacteria (whitishgrayish colonies of 2 mm greater diameter after 24 h incubation, respiratory metabolism, absent weak acid...
Food poisoning laboratories identify Bacillus cereus using routine methods that may not differentiate all group species. We recharacterized food-poisoning strains from 39 outbreaks and identified B. in 23 outbreaks, thuringiensis 4, mycoides 1, mixed of 11 outbreaks.
Six clinical isolates of a hitherto unknown, strictly anaerobic, Gram-negative rod showing fastidious growth were subjected to polyphasic taxonomic study, including phenotypic, genomic and phylogenetic feature analyses. 16S rRNA gene sequenced-based phylogeny revealed that the novel strains represent homogeneous group distant from any recognized species in candidate phylum ‘ Synergistetes ’. The most closely related genus Dethiosulfovibrio , with 88.2–88.7 % sequence similarity. Large-scale...
Novel nontoxigenic Corynebacterium diphtheriae was isolated from a domestic cat with severe otitis. Contact investigation and carrier study of human animal contacts yielded 3 additional, identical isolates cats, although no evidence zoonotic transmission identified. Molecular methods distinguished the feline known C. diphtheriae.
Gram-stain-positive, partially acid-fast, non-spore-forming, anaerobic, catalase-positive, pleomorphic bacteria were isolated from human abscesses. Strains X1036T, X1698 and NML 120705, recovered a spinal abscess, peritoneal abscess breast respectively. A phylogenetic analysis of the 16S rRNA gene sequences showed that strains shared 100 % similarity, nearest neighbour was Dietzia timorensis DSM 45568T (95%). Chemotaxonomic characteristics consistent with those described for members suborder...
ABSTRACT Nineteen new Corynebacterium species or taxa described since 1995 have been associated with human disease. We report the characteristics of 72 strains identified as most closely resembling 14 these newer, medically relevant taxa, well describe in brief an isolate bovis , a rare pathogen for humans. The bacteria studied this were nearly all derived from clinical specimens and by polyphasic approach. Most characterized full 16S rRNA gene sequence analysis. Some isolates recovered...
Invasive disease due to Corynebacterium diphtheriae is rare in North America. Here we describe the emergence of a predominant clone nontoxigenic strain C. impoverished population Vancouver's downtown core. This has caused significant morbidity and contributed at least two deaths. Over 5-year period, seven cases bacteremia were detected patients admitted Vancouver hospitals. Injection drug use, diabetes mellitus, skin colonization/infection with diphtheriae, homelessness all appeared be...
A comprehensive study was performed on 25 bacterial clinical isolates originally identified as Corynebacterium xerosis. Three reference strains of C. xerosis were also included in the study. On basis a variety phenotypic characteristics tested, all could be divided into two separate clusters: ATCC 373 (the type strain xerosis) and 7711 showed yellow-pigmented, dry, rough colonies, fermented 5-keto-gluconate, exhibited strong leucine arylamidase alpha-glucosidase activities, produced lactate...
A novel strictly anaerobic, vancomycin-resistant, Gram-positive coccus (strain CCRI-16110T) was isolated from a human faecal specimen. This strain characterized using morphological, biochemical and molecular taxonomic methods. The organism unable to hydrolyse aesculin failed produce acid cellobiose, d-lactose α-raffinose. Acetic the sole product of glucose fermentation by organism. On basis 16S rRNA tuf gene sequence comparison, CCRI-16110T most closely related species genus Ruminococcus...
ABSTRACT After the initial description of Arthrobacter spp. isolated from clinical specimens in mid-1990s, very few further reports on have appeared microbiology literature. The aim present study was to elucidate distribution and -like bacteria encountered by studying 50 consecutively or received strains large-colony-forming, whiteish-grayish, non-cheese-like-smelling, nonfermentative gram-positive rods applying phenotypic methods as well 16S rRNA gene sequencing. We observed a heterogenous...
Brevibacterium stationis ATCC 14403(T), Corynebacterium ammoniagenes 6872 and two clinical isolates were found to form a single taxon group consistent with the genus Corynebacterium, designated here as comb. nov. The type strain of is 14403(T) =CCUG 43497( T) =CIP 104228(T) =DSM 20302(T) =NBRC 12144(T) =JCM 11611(T) =VKM B-1228(T). These strains can utilize citrate; therefore, inclusion C. requires that description be amended include citrate-positive strains.
SUMMARY Canadian cases and outbreaks of illness caused by Listeria monocytogenes between 1995 2004 were assessed. Isolates (722 total) characterized serotyping, pulsed-field gel electrophoresis (PFGE) was performed to provide a means detecting case clusters. Rates listeriosis remained fairly consistent during the period study, patient characteristics similar those seen in studies other populations. Most isolates obtained from blood cerebrospinal fluid, although some outbreak investigations...
Strains of members the genus Corynebacterium derived from ophthalmologic patients in Japan, Belgium and Switzerland found to be closely related to-, but distinguishable mastitidis by 16S rRNA gene sequencing, were characterized using biochemical, chemotaxonomic, MALDI-TOF mass spectrometry antimicrobial susceptibility methods DNA-DNA hybridization as well whole-genome sequencing (WGS). Based on this investigation, we describe lowii sp. nov. oculi nov., human ocular specimens, emend...
CDC group non-oxidizer (NO)-1 is the provisional name designated in 1993 for phenotypically similar, Gram-stain-negative bacilli recovered primarily from human wound infections after animal bites. Otherwise, this has been rarely alluded to recent literature. NO-1 strains had described as non-motile, asaccharolytic, oxidase-negative, catalase-positive, nitrate-reducing bacilli, with predominate cellular fatty acids of C10 : 0 3OH, C16 1 ω7c, and C18 ω7c. Only one 16S rRNA gene sequence...
ABSTRACT CDC eugonic oxidizer group 2 (EO-2) is a of unclassified gram-negative bacterial strains isolated from various human sources. As determined by biochemical tests and analyses fatty acid compositions, these organisms form homogeneous that appears to be distinct but related other Paracoccus species. Molecular studies were performed on set 13 EO-2 clinical sources geographic locations in the United States Canada determine their relationship genus. Control denitrificans ATCC 17741 T , P....