Abstract:
:The emergence of extended-spectrum beta-lactamase (ESBL) and plasmid-mediated AmpC (pAmpC) enzymes in Escherichia coli raises concern regarding accurate laboratory detection and interpretation of susceptibility testing results. Twenty-six cefpodoxime ESBL screen-positive, cefoxitin-resistant E. coli clinical isolates were subjected to clavulanate ESBL confirmatory testing employing disk augmentation, Etest, and the BD Phoenix NMC/ID-132 panel. Phenotypic pAmpC production was assessed by boronic acid disk augmentation. ESBL and pAmpC genes were detected by gene amplification and sequencing. ESBL genes (SHV and/or CTX-M-type genes) were detected in only 7/26 ESBL screen-positive isolates. Of 23 aminophenylboronic acid screen-positive isolates, pAmpC genes were detected in 20 (CMY-2 or FOX-5 genes). High incidences of false-positive ESBL confirmatory results were observed for both clavulanate disk augmentation (9/19) and BD Phoenix (5/19). All were associated with the presence of pAmpC genes with or without TEM-1. Etest performed poorly, as the majority of interpretations were nondeterminable. In addition, false-negative ESBL confirmatory results were observed in isolates possessing concomitant ESBL and pAmpC genes for Etest (four of five), BD Phoenix (three of five), and disk augmentation (one of five). The results indicate poor performance of currently employed ESBL confirmatory methods in the setting of concomitant pAmpC. Some isolates with pAmpC and ESBL genes fell within the susceptible category to extended-spectrum cephalosporins, raising concern over currently employed breakpoints.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Robberts FJ,Kohner PC,Patel Rdoi
10.1128/JCM.01687-08subject
Has Abstractpub_date
2009-02-01 00:00:00pages
358-61issue
2eissn
0095-1137issn
1098-660Xpii
JCM.01687-08journal_volume
47pub_type
杂志文章abstract::In Europe, hemorrhagic fever with renal syndrome results mainly from infection with Puumala virus (PUUV) or Dobrava virus. For 31 patients from a hantavirus disease outbreak in Lower Bavaria, a district in southeast Germany, serodiagnosis was undertaken by enzyme-linked immunosorbent assay, immunofluorescence assay, a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02573-06
更新日期:2007-09-01 00:00:00
abstract::Fungal infection of the thyroid is rare. Most reported cases have involved Aspergillus, Coccidioides, and Candida species in the setting of disseminated disease. Infection of the thyroid with Histoplasma capsulatum is rarely reported as part of disseminated disease, even in geographic areas where histoplasmosis is end...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.10.3890-3891.2000
更新日期:2000-10-01 00:00:00
abstract::The majority of existing human papillomavirus (HPV) genotyping assays are based on multiplex PCR using consensus or degenerate primers. We developed a Templex HPV assay that simultaneously detects and identifies 25 common HPV genotypes in a single-tube reaction using type-specific primers for the HPV-specific E6 and E...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01762-06
更新日期:2006-11-01 00:00:00
abstract::Haemophilus influenzae type e biotype 4 was isolated from a single antemortem blood culture obtained from a 60-year-old, white male with abdominal carcinomatosis. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::The Abbott RealTime MTB (RT MTB) assay is a new automated nucleic acid amplification test for the detection of Mycobacterium tuberculosis complex (MTBC) in clinical specimens. In combination with the RealTime MTB INH/RIF (RT MTB INH/RIF) resistance assay, which can be applied to RT MTB-positive specimens as an add-on ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01144-16
更新日期:2016-12-01 00:00:00
abstract::Over a 12-month period, 43 children in eight different wards of our hospital (Hôpital Robert Debré) were infected or colonized with Klebsiella pneumoniae strains producing extended broad-spectrum beta-lactamases. The epidemiology of the outbreak was studied by a molecular approach including the determination of the be...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.2.179-184.1993
更新日期:1993-02-01 00:00:00
abstract::A VIM metallo-beta-lactamase-producing Aeromonas hydrophila strain carrying an integron-borne bla(VIM-4) gene was isolated from a cirrhotic patient's fecal sample in a Budapest hospital. The variable region of this integron is identical with that of a previously characterized integron from Pseudomonas aeruginosa clini...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00047-08
更新日期:2008-05-01 00:00:00
abstract::Many bacterial typing methods are specific for one species only, time-consuming, or poorly reproducible. DiversiLab (DL; bioMérieux) potentially overcomes these limitations. In this study, we evaluated the DL system for the identification of hospital outbreaks of a number bacterial species. Appropriately typed clinica...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01191-10
更新日期:2010-11-01 00:00:00
abstract::Four human coronaviruses (HCoV-229E, HCoV-HKU1, HCoV-NL63, and HCoV-OC43) are associated with a range of respiratory outcomes, including bronchiolitis and pneumonia. Their epidemiologies and clinical characteristics are poorly described and are often reliant on case reports. To address these problems, we conducted a l...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00636-10
更新日期:2010-08-01 00:00:00
abstract::Multilocus variable-number tandem-repeat analysis (MLVA) for seven genomic loci was developed for Enterococcus faecalis. MLVA and pulsed-field gel electrophoresis (PFGE) resulted in 37 and 31 genotypes among 83 strains, respectively. Both typing schemes were highly concordant (90.4%). MLVA is an excellent alternative ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.42.10.4879-4881.2004
更新日期:2004-10-01 00:00:00
abstract::Rapid identification of pathogens from blood cultures can decrease lengths of stay and improve patient outcomes. We evaluated the accuracy of the Verigene Gram-positive blood culture (BC-GP) nucleic acid test for investigational use only (Nanosphere, Inc., Northbrook, IL) for the identification of Gram-positive bacter...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00831-13
更新日期:2013-07-01 00:00:00
abstract::We have developed a novel and practical DNA-RNA hybridization assay for the detection and identification of Campylobacter pylori in the gastric mucosa. This technique utilizes a [32P]ddATP-labeled synthetic oligonucleotide probe complementary to a nucleotide sequence present in C. pylori 16S rRNA. This probe is very s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.12.2652-2655.1989
更新日期:1989-12-01 00:00:00
abstract::During the last 10 to 15 years, Aerococcus-like organisms have been isolated from urinary tract specimens from hospitalized patients at Bispebjerg Hospital, Copenhagen, Denmark, with signs of urinary tract infection, and a single strain has been deposited at the National Collection of Type Cultures (NCTC 12142). An ad...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.5.1049-1053.1991
更新日期:1991-05-01 00:00:00
abstract::Vaginal swab specimens may be preferable to cervical swab or urine specimens for the detection of Chlamydia trachomatis and Neisseria gonorrhoeae because of the ease of specimen collection and transport. The purpose of this study was to evaluate whether vaginal swab specimens are equivalent to cervical swab specimens ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.8.3592-3596.2003
更新日期:2003-08-01 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::We present a duplex, real-time PCR assay for detection of Klebsiella pneumoniae carbapenemase (blaKPC) and New Delhi metallo-β-lactamase (blaNDM) genes. Accuracy was assessed with 158 Gram-negative bacillary isolates, including 134 carbapenemase producers. The assay had 100% sensitivity and specificity compared with r...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03062-12
更新日期:2013-04-01 00:00:00
abstract::Real-time PCR methodology can be applied to rapidly and accurately detect influenza viruses. During times of surge testing or enhanced pandemic surveillance, public health laboratories (PHLs) may experience overwhelming demand for testing, even while the prevalence of positive specimens remains low. To improve laborat...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.05631-11
更新日期:2012-03-01 00:00:00
abstract::Class-specific enzyme-linked immunosorbent assays (ELISAs) with purified recombinant antigens of Borrelia burgdorferi sensu stricto and Western blot analyses with whole cells of this spirochete were used to test human sera to determine which antigens were diagnostically important. In analyses for immunoglobulin M (IgM...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.5.1735-1739.2000
更新日期:2000-05-01 00:00:00
abstract::Shiga toxin (Stx)-producing Escherichia coli (STEC) is the main cause of postdiarrheal hemolytic-uremic syndrome (HUS), a life-threatening clinical complication characterized by hemolytic anemia, thrombocytopenia, and acute renal failure that mainly affects children. A relevant feature of STEC strains is the productio...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01566-19
更新日期:2020-02-24 00:00:00
abstract::Twelve bacterial species including Streptococcus uberis, S. parauberis, S. agalactiae, S. dysgalactiae, S. bovis, S. mitis, S. salivarius, S. saccharolyticus, Enterococcus faecium, E. faecalis, E. avium, and Aerococcus viridans were examined for their 16S ribosomal DNA fingerprint patterns. Oligonucleotide primers com...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.9.2235-2240.1992
更新日期:1992-09-01 00:00:00
abstract::To determine sensitivity and specificity of immunofluorescence assay (IFA) for detection of Helicobacter pylori, we studied 151 patients. Biopsies of gastric mucosae were obtained for culture, histological testing, and IFA. H. pylori serum antibodies were tested by enzyme-linked immunosorbent assay. IFA was done on Fo...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.8.1748-1751.1991
更新日期:1991-08-01 00:00:00
abstract::We demonstrate that all nine species of the Burkholderia cepacia complex can express the mucoid phenotype. A survey of clinical isolates showed that strains of B. cenocepacia, the most virulent species of the complex, are most frequently nonmucoid. Additionally, isolates from patients with chronic infections can conve...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02273-07
更新日期:2008-04-01 00:00:00
abstract::An assay to detect and sequence DNA from human cytomegalovirus (HCMV) immediate-early gene region 1 has been developed; it involves in vitro amplification by the polymerase chain reaction and direct solid-phase sequencing of the amplified material. Urine samples from 16 patients tested positive for HCMV DNA in both a ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.4.955-960.1992
更新日期:1992-04-01 00:00:00
abstract::Humoral immune response to intestinal Rhodococcus (Corynebacterium) equi in horses was studied by enzyme-linked immunosorbent assay. Anti-R. equi immunoglobulin M (IgM), IgG, and IgA antibodies were demonstrated in the healthy horse population. Adult horse levels of anti-R. equi IgM and IgG antibodies were reached by ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.5.943-947.1986
更新日期:1986-05-01 00:00:00
abstract::The frequencies of 10 opportunistic DNA viruses were determined by multiplex real-time PCR in paired cerebrospinal fluid (CSF) and brain tissue of HIV-infected individuals. In the CSF, viruses were detectable in 45/55 cases: JC virus (JCV) in 62%, Epstein-Barr virus (EBV) in 44%, cytomegalovirus (CMV) in 25%, varicell...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03321-12
更新日期:2013-03-01 00:00:00
abstract::Plasmid-mediated colistin resistance (PMCR) is a global public health concern, given its ease of transmissibility. The purpose of this study was to evaluate two methods for the detection of PMCR from bacterial colonies: (i) the NG-Test MCR-1 lateral flow immunoassay (LFA; NG Biotech, Guipry, France) and (ii) the EDTA-...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01823-19
更新日期:2020-03-25 00:00:00
abstract::The G and P types of 2,912 rotavirus-positive fecal specimens collected from eight geographical areas of the United Kingdom between 1995 and 1998 were determined by reverse transcription-PCR. Although 15 different G-P combinations were identified, G1P[8], G2P[4], G3P[8], and G4P[8] strains constituted 95% of all the r...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.12.4394-4401.2000
更新日期:2000-12-01 00:00:00
abstract::To define the optimal conditions for human immunodeficiency virus (HIV) detection in microcultures, experiments were conducted with different ratios of patient and donor peripheral blood mononuclear cells (PBMCs). Donor/patient PBMC ratios ranged from 1:1 to 1:125. Optimal results were obtained when 1,500,000 donor ce...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.4.734-737.1990
更新日期:1990-04-01 00:00:00
abstract::A total of 800 colonies suggestive of Salmonella, Shigella, or Yersinia species isolated on stool differential agar media were inoculated onto both conventional biochemical test media (triple sugar iron agar, urea agar, and phenylalanine agar) and Entero Pathogen Screen cards of the AutoMicrobic system (Vitek Systems,...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.3.584-585.1987
更新日期:1987-03-01 00:00:00
abstract::A newly developed latex agglutination assay for the detection of genus-specific Leptospira antibodies in human sera was evaluated. The assay is performed by mixing, on an agglutination card, serum with equal volumes of stabilized antigen-coated, dyed test and control latex beads and is read within 2 min. The latex agg...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.3.1272-1275.2000
更新日期:2000-03-01 00:00:00