Abstract:
:The extent and importance of genotype heterogeneity of Pneumocystis carinii f. sp. hominis within lungs have not previously been investigated. Two hundred forty PCR clones obtained from respiratory specimens and lung segments from three patients with fatal P. carinii pneumonia were investigated to detect genetic diversity in the internal transcribed spacer (ITS) region of the nuclear rRNA operon, the mitochondrial large-subunit (mtLSU) rRNA gene, and the dihydropteroate synthase-encoding gene. For two of the three examined patients, a mixture of different mtLSU rRNA and ITS genotypes was observed. Not all genotypes present in the lungs at autopsy were detected in the diagnostic respiratory samples. Compartmentalization of specific ITS and mtLSU rRNA sequence types was observed in different lung segments. In conclusion, the interpretation of genotype data and in particular ITS sequence types in the assessment of epidemiological questions should be cautious since genotyping done on respiratory samples cannot a priori be assumed to represent all genotypes present within the lung.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Helweg-Larsen J,Lundgren B,Lundgren JDdoi
10.1128/JCM.39.10.3789-3792.2001subject
Has Abstractpub_date
2001-10-01 00:00:00pages
3789-92issue
10eissn
0095-1137issn
1098-660Xjournal_volume
39pub_type
杂志文章abstract::A standardized broth microdilution method was compared to the E test and an agar dilution method for the antimicrobial susceptibility testing of Campylobacter jejuni and C. coli isolates. A group of 47 human clinical isolates, 37 isolates from retail poultry, and 29 isolates from living turkeys (total, 113 isolates) w...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.3.1062-1068.2003
更新日期:2003-03-01 00:00:00
abstract::Comparative sequence analysis was performed upon Bacillus anthracis and its closest relatives, B. cereus and B. thuringiensis. Portions of rpoB DNA from 10 strains of B. anthracis, 16 of B. cereus, 10 of B. thuringiensis, 1 of B. mycoides, and 1 of B. megaterium were amplified and sequenced. The determined rpoB sequen...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.7.2908-2914.2003
更新日期:2003-07-01 00:00:00
abstract::Accurate identification of mycobacterial species and subspecies is essential to evaluate their significance and to perform epidemiological studies. The subspecies of Mycobacterium avium have different attributes but coincide in their zoonotic potential. Our knowledge about M. avium subsp. silvaticum is limited, since ...
journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.03556-14
更新日期:2015-05-01 00:00:00
abstract::A protocol was optimized for the isolation of Mycobacterium avium subsp. paratuberculosis (MAP) from milk and colostrum, with parameters including chemical decontamination, antibiotics, and different culture media. This study demonstrates that the efficiency of MAP recovery from milk is highly dependent upon the cultu...
journal_title:Journal of clinical microbiology
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abstract::The enzyme-linked immunosorbent assay (ELISA) has been proposed as an alternative serologic diagnostic test to the indirect immunofluorescence assay (IFA) for scrub typhus. Here, we systematically determine the optimal sample dilution and cutoff optical density (OD) and estimate the accuracy of IgM ELISA using Bayesia...
journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.02744-15
更新日期:2016-06-01 00:00:00
abstract::Two Hoffmann-La Roche products were evaluated in parallel for their ability to identify 321 strains of the family Enterobacteriaceae. The first product was the well-established Enterotube II, which correctly identified 90% of the isolates after 24 h of incubation. The second was the ID-E rotor, originally designed for...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.5.1027-1030.1989
更新日期:1989-05-01 00:00:00
abstract::The protease phenotypes expressed by isolates of Pseudomonas aeruginosa from cystic fibrosis (CF) patients were evaluated. The majority of isolates tested produced elastase (65%) or alkaline protease (64%) or both. The mucoid phenotype expressed by many CF isolates of P. aeruginosa did not absolutely restrict the expr...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.17.1.55-59.1983
更新日期:1983-01-01 00:00:00
abstract::Identification of clinical isolates of Nocardia to the species level is important for defining the spectrum of disease produced by each species and for predicting antimicrobial susceptibility. We evaluated the usefulness of PCR amplification of a portion of the Nocardia 16S rRNA gene and subsequent restriction endonuc...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::Lipopolysaccharide components 3-deoxy-D-manno-2-octulosonic acid and L-glycero-D-manno-heptose were detected in hydrolysates from whole cells of Neisseria elongata by gas-liquid chromatography. Cells from a single plate were hydrolyzed, and carbohydrate components were converted to aldononitrile and O-methyloxime acet...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.3.425-430.1986
更新日期:1986-03-01 00:00:00
abstract::Two ambient-temperature, dry plasma transport systems, ViveST tubes and RNASound RNA sampling cards, and two extraction methods were compared to frozen plasma for HIV-1 RNA recovery. Significant RNA loss occurred: ViveST+MiniMag > ViveST+QIAamp > RNASound+QIAamp. RNA loss and low specimen volumes may affect the sensit...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00541-16
更新日期:2016-07-01 00:00:00
abstract::A long-term outbreak of urinary tract-associated multiply resistant Providencia stuartii occurred in a large medical facility that included a 513-bed chronic care unit. The unique characteristics of this outbreak were that from within a single medical facility, P. stuartii with multiple serotypes, biotypes, and antibi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.11.2.167-169.1980
更新日期:1980-02-01 00:00:00
abstract::Common causes of chronic diarrhea among travelers worldwide include protozoan parasites. The majority of parasitic infections are caused by Giardia duodenalis, Entamoeba histolytica, Cryptosporidium parvum, and Cryptosporidium hominis Similarly, these species cause the majority of parasitic diarrhea acquired in the Un...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
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更新日期:2016-11-01 00:00:00
abstract::Twenty-three nasal swab samples that tested positive for methicillin-resistant Staphylococcus aureus (MRSA) on initial testing by the BD GeneOhm MRSA assay (BD-MRSA PCR; BD GeneOhm, San Diego, CA) were culture positive only for methicillin-susceptible S. aureus (MSSA) from an enrichment broth. The 23 recovered isolate...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02220-10
更新日期:2011-04-01 00:00:00
abstract::Hormographiella aspergillata, a filamentous basidiomycete, has rarely been involved in human infections. We describe 2 febrile neutropenic patients who developed a severe pulmonary infection due to H. aspergillata while receiving empirical caspofungin therapy for presumed fungal pneumonia. After introduction of liposo...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01213-10
更新日期:2011-01-01 00:00:00
abstract::Cell line 293, a continuous line of transformed human embryonic kidney cells, has been recognized for its sensitivity in the isolation of adenoviruses, particularly the fastidious species 40 and 41, from stool specimens. To explore the possibility of using this cell line for the isolation of other viruses from clinica...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.4.704-708.1986
更新日期:1986-04-01 00:00:00
abstract::Leifsonia aquatica is an aquatic bacterium that is typically found in environmental water habitats. Infections due to L. aquatica are rare and commonly catheter associated in immunocompromised patients. We report the first case of an acute septicemia caused by L. aquatica in a healthy immunocompetent host after cryope...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01339-13
更新日期:2013-11-01 00:00:00
abstract::Our results show that impairment of the gastrointestinal tracts in human immunodeficiency virus (HIV)-positive patients is present in the early phases of HIV disease. This impairment is associated with alterations in gut microbiota and intestinal inflammatory parameters. These findings support the hypothesis that alte...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01729-07
更新日期:2008-02-01 00:00:00
abstract::The clinical performance of the cobas human papillomavirus (HPV) test for detection of high-grade disease in a colposcopy-referred population was compared with that of Hybrid Capture 2 (HC2). The overall agreement between the tests was 92.3%. Clinical sensitivity and specificity for detection of cervical intraepitheli...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01949-13
更新日期:2013-10-01 00:00:00
abstract::Cerebrospinal fluid samples from 257 patients with suspected herpes simplex virus encephalitis were prospectively analyzed by herpes simplex virus polymerase chain reaction. The polymerase chain reaction indicated herpes simplex virus encephalitis in 9 serologically proven cases and in 14 additional patients. Increase...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.1.146-148.1993
更新日期:1993-01-01 00:00:00
abstract::Two commercially available reagents, latex particles (Bactigen) and Staphylococcus aureus suspensions (Phadebact), were compared for the detection of the capsular polyribitol phosphate antigen of Haemophilus influenzae type b in 18 pediatric patients with proven infections due to H. influenzae type b. Whereas both tes...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.21.4.638-640.1985
更新日期:1985-04-01 00:00:00
abstract::The density of malaria parasites is a key determinant of whether an infected individual develops fever. While the pyrogenic threshold for malaria parasite density has been well studied, there are no analogous data on the antigen levels associated with fever during infection. Samples from 797 afebrile and 457 febrile o...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01901-18
更新日期:2019-02-27 00:00:00
abstract::Lipopolysaccharide (LPS) of a reference strain of Yersinia enterocolitica serovar O15, Ye614, was examined for its chemical structure and antigenicity. The O15 LPS was partially hydrolyzed with diluted acetic acid and fractionated on a Sephadex G-50 column. Only one peak was detected at fractions where the R-core olig...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.24.2.272-274.1986
更新日期:1986-08-01 00:00:00
abstract::Using 920 sera, we compared the specificity and reproducibility of the hemagglutination treponemal test for syphilis with those of the fluorescent treponemal antibody-absorption test and the microhemagglutination assay for Treponema pallidum antibodies; we found all three tests to be comparable. However, the hemagglut...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.14.4.441-445.1981
更新日期:1981-10-01 00:00:00
abstract::Gastrointestinal disease and colonization by Helicobacter pylori were determined in 36 asymptomatic volunteers and 30 symptomatic individuals undergoing endoscopy and biopsy. Serum antibody immunoglobulin G (IgG) and IgA to H. pylori were measured by enzyme-linked immunosorbent assay. Serum antibody to a cytotoxin pro...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.6.1181-1184.1990
更新日期:1990-06-01 00:00:00
abstract::A matched case-control study was conducted in the Maternal and Child Health Clinic (MCH) in Ifakara, Tanzania, during the rainy season in order to elucidate the risk factors for and etiology of diarrheal diseases in children under 5 years of age. Cases (103) and controls (206) were matched for sex and age group. Preco...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.12.4459-4462.2000
更新日期:2000-12-01 00:00:00
abstract::A simple new agar medium containing L-canavanine, glycine, and bromthymol blue was found to give a clearer and more accurate distinction between serotype A or D (Cryptococcus neoformans var. neoformans) and serotype B or C (C. neoformans var. gattii) than creatinine-dextrose-bromthymol blue or glycine-cycloheximide-ph...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.15.3.535-537.1982
更新日期:1982-03-01 00:00:00
abstract::Prion diseases of cattle include the classical bovine spongiform encephalopathy (C-BSE) and the atypical H-type BSE (H-BSE) and L-type BSE (L-BSE) strains. Although the C- and L-BSE strains can be detected and discriminated by ultrasensitive real-time quaking-induced conversion (RT-QuIC) assays, no such test has yet b...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02731-15
更新日期:2016-03-01 00:00:00
abstract::The use of real-time quantitative PCR (5' nuclease PCR assay) as a tool to study the gastrointestinal microflora that adheres to the colonic mucosa was evaluated. We developed primers and probes based on the 16S ribosomal DNA gene sequences for the detection of Escherichia coli and Bacteroides vulgatus. DNA was isolat...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.12.4423-4427.2002
更新日期:2002-12-01 00:00:00
abstract::A directory of test patterns and their interpretations has been prepared for identification of Enterobacteriaceae by using the 11-test API 10 S kit. The diagnostic accuracy of the directory and kit were evaluated by using records of test results for 37,476 isolates studied with the 21-test API 20 Enteric kit. Analysis...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.1.6.515-520.1975
更新日期:1975-06-01 00:00:00
abstract::Sera from patients with systemic infections caused by the opportunistic fungus Trichosporon beigelii have been shown to cross-react with anticryptococcal antibodies. We quantitatively compared the amounts of antigen produced and examined the expression of O-acetyl epitopes from 35 strains of T. beigelii isolated from ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.1.126-130.1995
更新日期:1995-01-01 00:00:00