Abstract:
:The first World Health Organization (WHO) international standards (ISs) for nucleic acid amplification techniques were established two decades ago, with the initial focus on blood screening for three major viral targets, i.e., hepatitis C virus, hepatitis B virus, and human immunodeficiency virus 1. These reference materials have subsequently found utility in the diagnosis and monitoring of a wide range of infectious diseases in clinical microbiology laboratories worldwide. WHO collaborating centers develop ISs and coordinate international studies for their evaluation. The WHO Expert Committee on Biological Standardization is responsible for the endorsement of new standardization projects and the establishment of new and replacement ISs. Potencies of ISs are defined in international units (IU); the reporting in IU for assays calibrated with an IS (or secondary standards traceable to the IS) facilitates comparability of results for different assays and determination of assay parameters such as analytical sensitivities.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Baylis SA,Wallace P,McCulloch E,Niesters HGM,Nübling CMdoi
10.1128/JCM.01056-18subject
Has Abstractpub_date
2019-01-02 00:00:00issue
1eissn
0095-1137issn
1098-660Xpii
JCM.01056-18journal_volume
57pub_type
杂志文章,评审abstract::Prosthetic joint infection (PJI) is a rare but refractory complication of arthroplasty. Accurate identification of pathogens is a key step for successful treatment of PJI, which remains a challenge for clinicians and laboratory workers. We designed a combined culture method with sonication of implants and incubation i...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02863-14
更新日期:2015-03-01 00:00:00
abstract::We report a study of 1,953 patients whose laboratory records from 1972 through 1983 at the Massachusetts Mycobacteria Reference Laboratory indicated the isolation of Mycobacterium avium complex (MAC) organisms. At least one clinical specimen from each patient during this period exhibited the organism. The incidence of...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.22.1.9-12.1985
更新日期:1985-07-01 00:00:00
abstract::Phoma minutella, a dematiaceous hyphomycete, was isolated to the exclusion of all other fungi from a subcutaneous inflammatory process on the foot of a farmer undergoing corticosteroid therapy for myasthenia gravis. Isolation was achieved on several nutrient media. Examination of stained smears and sections revealed d...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.12.2395-2397.1987
更新日期:1987-12-01 00:00:00
abstract::The etiology of the purple urine bag syndrome (PUBS), in which the urinary catheter bag of some elderly patients develops intense purple coloration, was studied. The purple was found to be a mixture of indirubin dissolved in the plastic and indigo on its surface. Six patients with PUBS were studied, and Providencia st...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.26.10.2152-2156.1988
更新日期:1988-10-01 00:00:00
abstract::In our nursery, we identified neonates with positive urine latex particle agglutination (LPA) tests for group B streptococcus (GBS) antigen who did not have corroborating cultural evidence of infection. To investigate the mechanisms underlying these apparent false-positive reactions, we examined the urine LPA test in ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.10.2214-2217.1989
更新日期:1989-10-01 00:00:00
abstract::We determined the types of cholera toxin (CT) produced by a collection of 185 Vibrio cholerae O1 strains isolated in Bangladesh over the past 45 years. All of the El Tor strains of V. cholerae O1 isolated since 2001 produced CT of the classical biotype, while those isolated before 2001 produced CT of the El Tor biotyp...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01304-06
更新日期:2006-11-01 00:00:00
abstract::Monoclonal antibodies reactive with three different viral polypeptides were evaluated singly and in combination as the capture antibody(s) in an enzyme-linked immunosorbent assay system for the detection of bovine enteric coronavirus. Similar levels of sensitivity were found for all combinations tested. A sensitive, h...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.19.3.388-393.1984
更新日期:1984-03-01 00:00:00
abstract::Spiroplasma species are organisms that normally colonize plants and insects. We describe the first case of human systemic infection caused by Spiroplasma bacteria in a patient with hypogammaglobulinemia undergoing treatment with biological disease-modifying antirheumatic agents. Spiroplasma turonicum was identified th...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02841-14
更新日期:2015-02-01 00:00:00
abstract::Although screening for maternal toxoplasmic seroconversion during pregnancy is based on immunodiagnostic assays, the diagnosis of clinically relevant toxoplasmosis greatly relies upon molecular methods. A problem is that this molecular diagnosis is subject to variation of performances, mainly due to a large diversity ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/JCM.02500-09
更新日期:2010-09-01 00:00:00
abstract::We compared a direct fluorescent-antibody stain (DFA) and an enzyme immunoassay (EIA) with a standard cell culture technique for the detection of Chlamydia trachomatis infection in women in an urban family practice setting. We also evaluated a DFA sample in a commercial laboratory to determine the interlaboratory reli...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.7.1580-1585.1990
更新日期:1990-07-01 00:00:00
abstract::Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) was collected from children with bullous impetigo in 2003 and 2004. One strain collected in 2003 was Panton-Valentine leucocidin (PVL) positive. In 2004, a multiple-drug-resistant PVL(+) CA-MRSA strain was isolated from an athlete with a cutaneou...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.7.3356-3363.2005
更新日期:2005-07-01 00:00:00
abstract::Aspergillus fumigatus has widely evolved resistance to the most commonly used class of antifungal chemicals, the azoles. Current methods for identifying azole resistance are time-consuming and depend on specialized laboratories. There is an urgent need for rapid detection of these emerging pathogens at point-of-care t...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00843-20
更新日期:2020-10-21 00:00:00
abstract::We tested 121 pneumococcal serogroup 6 isolates (including 30 serotype 6C and 24 serotype 6D isolates) by serotype-specific PCR and the Quellung reaction, using "old" and "new" pool B, factor 6b, and new factor 6d antisera. In combination with group B and other factor antisera, factor 6d antiserum can reliably identif...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00675-10
更新日期:2010-09-01 00:00:00
abstract::The mold Aureobasidium pullulans was isolated on several nutrient media from a splenic abscess in a patient with disseminated lymphoma. Examination of stained smears and paraffin sections revealed fungal structures characteristic of this organism. This is the first reported association of A. pullulans with an opportun...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.5.828-831.1986
更新日期:1986-05-01 00:00:00
abstract::In accordance with recent WHO recommendations, this study evaluates the sensitivities of PCR and microscopy for fine-needle aspiration (FNA) versus techniques involving swabs and punch biopsy specimens and suggests that FNA can replace punch biopsies for nonulcerative lesions and may serve as an alternative for ulcera...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01549-10
更新日期:2010-10-01 00:00:00
abstract::Surveillance methods that measure St. Louis encephalitis (SLE) virus activity in nature may provide forewarning of its epidemic occurrence in humans. An antigen capture enzyme immunoassay was developed to detect SLE virus in infected mosquitoes. The assay detected purified SLE viral antigen at a concentration of 62 pg...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.2.370-376.1987
更新日期:1987-02-01 00:00:00
abstract::The hexagonal surface structure believed to be characteristic for influenza C virus was not initially observed for a newly isolated virus of this type. After a few additional egg passages of the virus, however, the hexagonal structure could be readily seen on many virions. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1977-07-01 00:00:00
abstract::The recently sequenced genome of Campylobacter jejuni RM1221 revealed the presence of three integrated bacteriophage-like elements. In this study, genes from the first element, a Mu-like bacteriophage, were amplified by PCR and used to probe pulsed-field gels of clinical C. jejuni strains obtained from a waterborne ou...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01513-06
更新日期:2007-02-01 00:00:00
abstract::Despite advances in the standardization of quantitative DNAemia tests and efforts to better understand and characterize the performance of reference materials in different assays, it remains unclear how the commutability performance of reference materials is related to intra- and interassay agreement. Building upon pr...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00963-18
更新日期:2019-01-02 00:00:00
abstract::A novel reverse primer (GLM MR1) was designed for detection of the glmM gene in Helicobacter pylori by PCR. The percentage of amplification in clinical isolates using GLM MR1 was 100% for detection of the glmM gene and 86.36% for the ureA gene. The primer designed is useful for the identification of H. pylori. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00461-10
更新日期:2011-04-01 00:00:00
abstract::Blood culture bottles with antimicrobial removal systems are recommended for patients who develop fever while on antibiotics. This study compared the ability of Becton Dickinson (Sparks, MD) BACTEC PLUS bottles and bioMerieux (Durham, NC) BacT/Alert FA bottles to effectively remove vancomycin, cefoxitin, ceftriaxone, ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02064-06
更新日期:2007-03-01 00:00:00
abstract::Conditions were defined for functional covalent coupling of anti-Lassa virus globulins to glutaraldehyde-fixed chicken erythrocytes. Tolylene-2,4-diisocyanate in a reaction mixture containing not more than 0.01 M NaCl produced uniformly good conjugates which were used in reversed passive hemagglutination (RPH) and rev...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.11.6.593-599.1980
更新日期:1980-06-01 00:00:00
abstract::A fully automated antifungal susceptibility test system recently updated to reflect the new species-specific clinical breakpoints (CBPs) of fluconazole for Candida (Vitek 2 AF03 yeast susceptibility test; bioMérieux, Inc., Durham, NC) was compared in three different laboratories with the Clinical and Laboratory Standa...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/JCM.00658-14
更新日期:2014-06-01 00:00:00
abstract::We present a method for rapid and simple detection of clinically relevant mucormycetes of the Mucorales order in cultures and clinical samples. This seminested real-time PCR uses mucormycete-specific primers and is followed by species identification using high-resolution melt (HRM) analysis. The method is highly suita...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01109-10
更新日期:2010-09-01 00:00:00
abstract::In the context of hematopoietic stem cell transplantation, adenovirus infections are associated with relevant mortality and morbidity. Detection of adenovirus DNA by quantitative PCR is the "gold standard" for these patients. A total of 150 samples, namely, 78 whole-blood, 22 cerebrospinal fluid, 24 digestive biopsy, ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00976-10
更新日期:2010-09-01 00:00:00
abstract::We investigated the performance of a double-antigen sandwich recombinant enzyme immunoassay (EIA; Abbott Laboratories, North Chicago, Ill.) and compared it with that of a synthetic-peptide-based EIA (Biochem Immunosystems, Montreal, Quebec, Canada) for the detection of human immunodeficiency type 1 (HIV-1) and HIV-2 a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.4.999-1002.1996
更新日期:1996-04-01 00:00:00
abstract::We evaluated the clinical performance of Check-Direct CPE for carbapenemase detection directly from 301 perirectal swabs (258 patients) in a nonoutbreak setting. Culture of a PCR-confirmed, carbapenemase-containing organism, or history of colonization with such organism within the previous 2 weeks, was used as the ref...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01921-15
更新日期:2015-12-01 00:00:00
abstract::Early detection of Mycobacterium tuberculosis complex (MTBC) and markers conveying drug resistance can have a beneficial impact on preventive public health actions. We describe here a new molecular point-of-care (POC) system, the Genedrive, which is based on simple sample preparation combined with PCR to detect MTBC a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02209-13
更新日期:2014-02-01 00:00:00
abstract::Members of the genus Exophiala are often difficult to identify to the species level because of their variable morphological appearances. This paper describes the methods used to identify Exophiala mesophila and provides salient differential features for distinguishing other mesophilic members of the genus. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.8.3885-3889.2003
更新日期:2003-08-01 00:00:00
abstract::This study was undertaken to develop an accurate, yet inexpensive, method for determining whether the bowel of a neutropenic patient is colonized with bacteria resistant to the antimicrobial agents used in empiric therapy. Selective agar media were prepared in which Mueller-Hinton agar or MacConkey agar were supplemen...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.20.6.1174-1176.1984
更新日期:1984-12-01 00:00:00