Abstract:
:Candida auris is a multidrug-resistant yeast that causes a wide spectrum of infections, especially in intensive care settings. We investigated C. auris prevalence among 102 clinical isolates previously identified as Candida haemulonii or Candida famata by the Vitek 2 system. Internal transcribed spacer region (ITS) sequencing confirmed 88.2% of the isolates as C. auris, and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) easily separated all related species, viz., C. auris (n = 90), C. haemulonii (n = 6), C. haemulonii var. vulnera (n = 1), and Candida duobushaemulonii (n = 5). The in vitro antifungal susceptibility was determined using CLSI broth microdilution (CLSI-BMD), the Vitek 2 antifungal susceptibility test, and the Etest method. C. auris isolates revealed uniformly elevated fluconazole MICs (MIC50, 64 μg/ml), and an alarming percentage of isolates (37%) exhibited elevated caspofungin MICs by CLSI-BMD. Notably, 34% of C. auris isolates had coexisting elevated MICs (≥2 μg/ml) for both fluconazole and voriconazole, and 10% of the isolates had elevated coexisting MICs (≥2 μg/ml) to two additional azoles, i.e., posaconazole and isavuconazole. In contrast to reduced amphotericin B MICs by CLSI-BMD (MIC50, 1 μg/ml) for C. auris, elevated MICs were noted by Vitek 2 (MIC50, 8 μg/ml), which were statistically significant. Candida auris remains an unnoticed pathogen in routine microbiology laboratories, as 90% of the isolates characterized by commercial identification systems are misidentified as C. haemulonii. MALDI-TOF MS proved to be a more robust diagnostic technique for rapid identification of C. auris. Considering that misleading elevated MICs of amphotericin B by the Vitek AST-YS07 card may lead to the selection of inappropriate therapy, a cautionary approach is recommended for laboratories relying on commercial systems for identification and antifungal susceptibility testing of rare yeasts.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Kathuria S,Singh PK,Sharma C,Prakash A,Masih A,Kumar A,Meis JF,Chowdhary Adoi
10.1128/JCM.00367-15subject
Has Abstractpub_date
2015-06-01 00:00:00pages
1823-30issue
6eissn
0095-1137issn
1098-660Xpii
JCM.00367-15journal_volume
53pub_type
杂志文章abstract::Community-acquired bloodstream infections cause substantial morbidity and mortality worldwide, but microbiology capacity and surveillance limitations have challenged good descriptions of pathogen distribution in many regions, including Southeast Asia. Active surveillance for bloodstream infections has been conducted i...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02008-14
更新日期:2015-03-01 00:00:00
abstract::Microsporidia (phylum Microsproa) have recently become recognized as common opportunistic protozoans in the United States and worldwide, particularly affecting immunodeficient patients. Microsporidian organisms within the genus Encephalitozoon are the cause of nephrologic, ophthalmic, pneumologic, gastroenteric, and s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.3.724-729.1997
更新日期:1997-03-01 00:00:00
abstract::Subgroup J avian leukosis virus (ALV-J) is an avian retrovirus that causes severe economic losses in the poultry industry. The early identification and removal of virus-shedding birds are important to reduce the spread of congenital and contact infections. In this study, a TaqMan-based real-time PCR method for the rap...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02030-12
更新日期:2013-01-01 00:00:00
abstract::The number of reported cases of infections with non-serogroup O1 Vibrio cholerae in the United States has increased recently. These cases have almost invariably been associated with travel, seawater exposure, or the ingestion of shellfish. We report a case of bacteremic cellulitis caused by non-O1 V. cholerae that was...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.12.2874-2876.1989
更新日期:1989-12-01 00:00:00
abstract::Alternative antischistosomal drugs are required since praziquantel is virtually the only drug available for treatment and morbidity control of schistosomiasis. Manual microscopic reading is the current "gold standard" to assess the in vitro antischistosomal properties of test drugs; however, it is labor-intensive, sub...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02382-10
更新日期:2011-04-01 00:00:00
abstract::Escherichia coli isolates that cause detachment of cell monolayers during in vitro adherence assays (cell-detaching E. coli [CDEC]) were recently reported as a potential new group of enteropathogenic bacteria. In the present study, 269 E. coli isolates from feces of children 1 to 5 years of age were identified as CDEC...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.10.2707-2709.1995
更新日期:1995-10-01 00:00:00
abstract::The prevalence of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli (ESBLEC) in Spain increased 8-fold from 2000 to 2006. ESBL type, clonal relationship, antimicrobial susceptibility, and clinical data about infections caused by ESBLEC are evaluated in a second nationwide study developed in 2006. From...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02147-09
更新日期:2010-08-01 00:00:00
abstract::The fluorescent amplified-fragment length polymorphism (FAFLP) assay potentially amplifies a unique set of genome fragments from each bacterial clone. It uses stringently hybridizing primers which carry a fluorescent label. Precise fragment sizing is achieved by the inclusion of an internal size standard in every lane...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.5.1274-1279.1999
更新日期:1999-05-01 00:00:00
abstract::In contrast to cervical cancer, integration of human papillomavirus (HPV) DNA into the host genome has been considered a rare event in cancer precursor lesions (cervical intraepithelial neoplasia [CIN]). With our new real-time PCR method, we demonstrated that integrated HPV type 16 (HPV16) is already present in CIN le...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.3.886-891.2002
更新日期:2002-03-01 00:00:00
abstract::This study used a nested multiplex PCR method to detect three periodontal pathogens in subgingival plaque collected before treatment and at 2 and 6 months posttreatment from 107 patients with severe, generalized periodontitis. The proportions of the patients who harbored these bacteria before periodontal treatment wer...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01007-08
更新日期:2008-10-01 00:00:00
abstract::A total of 1,835 Yersinia spp. were isolated from 925 (60.5%) of 1,530 wild mice and from 139 (79.9%) of 174 moles living in mountainous areas of eastern Shimane Prefecture, Japan. The Yersinia spp. included 1,106 Yersinia enterocolitica, 26 Y. enterocolitica-like, 176 Yersinia mollaretii, 149 Yersinia frederiksenii, ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.11.2448-2455.1990
更新日期:1990-11-01 00:00:00
abstract::Since the use of highly purified viral proteins in the solid-phase radioimmunoassay (SPRIA) procedure is not practical for routine diagnostic serology, the procedure was adapted for use with the crude antigens now commonly used to diagnose St. Louis encephalitis (SLE) virus infections. SLE and various other alpha- and...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.14.2.135-140.1981
更新日期:1981-08-01 00:00:00
abstract::Antigenic sites on the nucleocapsid (N) protein of severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV) were mapped by Pepscan analysis with overlapping peptides that span the N protein sequence. Two major immunodominant epitopes located in the C-terminal region (amino acids [aa] 362 to 412) and middle regi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.42.11.5309-5314.2004
更新日期:2004-11-01 00:00:00
abstract::The currently available diagnostics for Clostridium difficile infection (CDI) have major limitations. Despite mounting evidence that toxin detection is paramount for diagnosis, conventional toxin immunoassays are insufficiently sensitive and cytotoxicity assays too complex; assays that detect toxigenic organisms (toxi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01334-15
更新日期:2015-10-01 00:00:00
abstract::The cellular fatty acid composition of Brucella canis and Brucella suis was determined by gas-liquid chromatography. The presence of relatively large amounts of a 19-carbon cyclopropane fatty acid in B. suis was a major distinguishing feature between these organisms. The gas-liquid chromatography test for cellular fat...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.14.1.111-112.1981
更新日期:1981-07-01 00:00:00
abstract::Arbitrarily primed polymerase chain reaction (AP-PCR) was used to characterize Legionella pneumophila serogroup 1. Cells from a single colony could be subtyped by AP-PCR within a few hours. The discrimination between strains of L. pneumophila serogroup 1 by AP-PCR was equivalent to that by monoclonal antibody analysis...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.7.1940-1942.1993
更新日期:1993-07-01 00:00:00
abstract::Helicobacter pylori virulence determinants have not previously been studied in detail in Latin Americans with H. pylori infections. We characterized the vacA (vacuolating cytotoxin gene A) and cagA (cytotoxin-associated gene A) types of more than 400 single-colony isolates from 20 patients in Mexico City. For 17 patie...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.9.3001-3004.1999
更新日期:1999-09-01 00:00:00
abstract::Patients with atrophic corpus gastritis and elevated Helicobacter pylori antibody titers but 13C-urea breath test (13C-UBT) and histology results negative for H. pylori were randomized into eradication therapy or follow-up only. Antibody levels decreased significantly in six out of seven patients in the eradication gr...
journal_title:Journal of clinical microbiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1128/JCM.36.6.1808-1810.1998
更新日期:1998-06-01 00:00:00
abstract::Meningococcal disease caused by N. meningitidis serogroup B (MenB) has been endemic in Brazil since 1997. In this study, we determined the prevalence of serosubtypes of MenB isolated in 10 Brazilian states and the Federal District during 1997 and 1998 and investigated the extent of PorA VR sequence variation among the...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.39.8.2897-2903.2001
更新日期:2001-08-01 00:00:00
abstract::Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has proved to be a useful diagnostic method for identifying conventional bacteria. In the case of mycobacteria, a good protein extraction protocol is essential in order to obtain reliable identification results. To date, no suc...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01548-17
更新日期:2018-03-26 00:00:00
abstract::Helicobacter pylori strains possessing the cag pathogenicity island (PaI) are associated with the development of gastroduodenal diseases, including gastric cancer. cag PaI products induce the secretion of interleukin-8 (IL-8) from epithelial cells and facilitate the translocation of CagA into the cell cytosol. In East...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.2.786-790.2005
更新日期:2005-02-01 00:00:00
abstract::Human group C rotavirus was identified in central Australia in each of eight years over a 16-year period between 1982 and 1997. Cases occurred either sporadically but over a relatively short period of time or as clustered outbreaks. These are the only reports of human group C rotavirus in Australia other than that of ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.42.5.2127-2133.2004
更新日期:2004-05-01 00:00:00
abstract::We have isolated one sorbitol-nonfermenting (SNF) Escherichia coli O157:H7 isolate and five sorbitol-fermenting (SF) E. coli O157:H(-) isolates that do not contain Shiga toxin (Stx) genes (stx). Isolates originated from patients with diarrhea (n = 4) and hemolytic-uremic syndrome (HUS) (n = 2). All isolates harbored a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.11.3491-3496.1999
更新日期:1999-11-01 00:00:00
abstract::Lyme borreliosis is a tick-borne disease caused by the Borrelia burgdorferisensu lato complex. Bio-Rad Laboratories has developed a fully automated multiplex bead-based assay for the detection of IgM and IgG antibodies to B. burgdorferi The BioPlex 2200 Lyme Total assay exhibits an improved rate of seropositivity in p...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01785-19
更新日期:2020-04-23 00:00:00
abstract::Bartonella henselae or Bartonella elizabethae DNA from EDTA-anticoagulated blood samples obtained from four dogs was amplified and sequenced. The results showed that B. elizabethae should be added to the list of Bartonella species (i.e., B. vinsonii subsp. berkhoffii, B. henselae, and B. clarridgeiae) that are current...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.12.4670-4674.2002
更新日期:2002-12-01 00:00:00
abstract::We evaluated a commercially available second-generation anti-H. pylori immunoglobulin G enzyme immunoassay (EIA) (Cobas Core Anti-Helicobacter pylori EIA; Roche S. A., Basel, Switzerland) for serodiagnosis of H. pylori infection. The results of the assay were assessed in relation to the results of bacterial culture, u...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.1.176-180.1992
更新日期:1992-01-01 00:00:00
abstract::The incidence of antimicrobial-resistant Neisseria gonorrhoeae continues to rise in Canada; however, antimicrobial resistance data are lacking for approximately 70% of gonorrhea infections that are diagnosed directly from clinical specimens by nucleic acid amplification tests (NAATs). We developed a molecular assay fo...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00493-15
更新日期:2015-07-01 00:00:00
abstract::A polymerase chain reaction (PCR) procedure coupled to an enzyme-linked oligonucleotide sorbent assay (ELOSA; a PCR-ELOSA) identified all 24 serotypic variants of bluetongue virus (BTV) without identifying any of six viruses belonging to the related epizootic hemorrhagic disease virus serogroup. The PCR-ELOSA detected...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.11.3028-3030.1993
更新日期:1993-11-01 00:00:00
abstract::Screening for HIV infection has improved since the first immunoassays. Today, diagnosis of HIV infection can be performed with fourth-generation tests that track both the patient's antibodies and HIV antigen. The objective of this study was to evaluate the clinical sensitivity and specificity of the new DiaSorin Liais...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01089-14
更新日期:2014-09-01 00:00:00
abstract::We propose a novel application of secondary electrospray ionization-mass spectrometry (SESI-MS) as a real-time clinical diagnostic tool for bacterial infection. It is known that volatile organic compounds (VOCs), produced in different combinations and quantities by bacteria as metabolites, generate characteristic odor...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00392-10
更新日期:2010-12-01 00:00:00