Abstract:
:Salmonella typhi was isolated from 369 and Salmonella paratyphi A was isolated from 6 of 515 Vietnamese patients with suspected enteric fever. Compared with conventional broth culture of blood, direct plating of the buffy coat had a diagnostic sensitivity of 99.5% (95% confidence interval [CI], 97.1 to 100%). Blood bacterial counts were estimated by the pour plate method. The median S. typhi count in blood was 1 CFU/ml (range, <0.3 to 387 CFU/ml), of which a mean of 63% (95% CI, 58 to 67%) were intracellular. The mean number of bacteria per infected leukocyte was 1.3 (interquartile range [IQR], 0.7 to 2.4) CFU/cell (n = 81). Children (< 15 years old; n = 115) had higher median blood bacterial counts than adults (n = 262): 1.5 (range, <0.3 to 387) versus 0.6 (range, <0.3 to 17.7) CFU/ml (P = 0.008), and patients who excreted S. typhi in feces had higher bacteremias than those who did not: a median of 3 (range, <0.3 to 32) versus 1 (range, <0.3 to 68) CFU/ml (P = 0.02). Blood bacterial counts declined with increasing duration of illness (P = 0.002) and were higher in infections caused by multidrug-resistant S. typhi (1.3 [range, <0.3 to 387] CFU/ml; n = 313) than in infections caused by antibiotic-sensitive S. typhi (0.5 [range, <0.3 to 32] CFU/ml; n = 62) (P = 0.006). In a multivariate analysis this proved to be an independent association, suggesting a relationship between antibiotic resistance and virulence in S. typhi.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Wain J,Diep TS,Ho VA,Walsh AM,Nguyen TT,Parry CM,White NJdoi
10.1128/JCM.36.6.1683-1687.1998subject
Has Abstractpub_date
1998-06-01 00:00:00pages
1683-7issue
6eissn
0095-1137issn
1098-660Xjournal_volume
36pub_type
杂志文章abstract::Sequential specimens from nine allograft recipients were examined by using a variety of methods to detect primary cytomegalovirus (CMV) infection as rapidly as possible posttransplantation. Sera were examined for immunoglobulin G (IgG) and IgM antibodies by immunoblotting, enzyme immunoassay, and immunofluorescence an...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.12.2672-2677.1989
更新日期:1989-12-01 00:00:00
abstract::The emergence of a clinically daptomycin-resistant Staphylococcus aureus isolate occurred during treatment of methicillin-resistant S. aureus bacteremia and probable vertebral osteomyelitis. The breakthrough isolate was indistinguishable from pretreatment daptomycin-susceptible isolates by pulsed-field gel electrophor...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.44.2.595-597.2006
更新日期:2006-02-01 00:00:00
abstract::Antigens of Rhodococcus equi were analyzed by immunoblotting with naturally infected foal sera. Immunoblots of whole-cell antigen preparations of clinical isolates of R. equi revealed that major protein bands with molecular masses of 15 to 17 kDa were present in all clinical isolates tested and all isolates virulent f...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.3.439-443.1991
更新日期:1991-03-01 00:00:00
abstract::Molecular analysis of Mycobacterium ulcerans has revealed two new insertion sequences (ISs), IS2404 and IS2606. IS2404 was identified by complete sequencing of a previously described repetitive DNA segment from M. ulcerans. This element is 1,274 bp long, contains 12-bp inverted repeats and a single open reading frame ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.4.1018-1023.1999
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abstract::An international collaborative study was performed in order to propose quality control limits for voriconazole disk diffusion tests on Mueller-Hinton agar with 2% glucose and 0.5 micro g of methylene blue per ml. The supplement may be added to the agar before autoclaving, or Mueller-Hinton agar plates may be flooded w...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.42.4.1716-1718.2004
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abstract::Sputum specimens received for the diagnosis of tuberculosis or other mycobacterial infections were tested by a ligase chain reaction (LCR)-based assay and acid-fast stain and culture techniques. Results from the LCR assay (Abbott LCx Mycobacterium tuberculosis [MTB] Assay) were compared to results from standard cultur...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.4.1028-1031.1998
更新日期:1998-04-01 00:00:00
abstract::Point source norovirus outbreaks can be difficult to track due to high background levels of the virus in the environment and the limited strain variation in some genotyping regions. However, rapid and accurate source identification can limit the spread of a foodborne outbreak and reduce the number of cases. Harmonizat...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/JCM.00497-09
更新日期:2009-12-01 00:00:00
abstract::Conserved primers were used to PCR amplify 95% of the Helicobacter hepaticus 16S rRNA gene. Its sequence was determined and aligned to those of related bacteria, enabling the selection of primers to highly diverged regions of the 16S rRNA gene and an oligonucleotide probe for the development of a PCR-liquid hybridizat...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.5.1344-1347.1995
更新日期:1995-05-01 00:00:00
abstract::A typing enzyme immunoassay (TYPE-EIA) was used to determine the antigenic types of 64 astrovirus-positive specimens from nine collections from seven countries. Six of the seven known astrovirus types were detected in the collections, with HAstV-1 predominating in all collections for one from the United Kingdom. Selec...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.4.797-801.1995
更新日期:1995-04-01 00:00:00
abstract::We have developed a sensitive assay for Treponema pallidum subsp. pallidum (T. pallidum), the agent of veneral syphilis, based upon the polymerase chain reaction (PCR). A 658-bp portion of the gene encoding the 47-kDa membrane immunogen was amplified, and the PCR products were probed by DNA-DNA hybridization with a 49...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.1.62-69.1991
更新日期:1991-01-01 00:00:00
abstract::A new direct immunofluorescence monoclonal antibody (DFA) method (Genetic Systems, Inc., Seattle, Wash.) for identification of Pneumocystis carinii in induced sputum and bronchoalveolar lavage specimens was compared in a blinded study with an established Giemsa stain method. We evaluated 148 consecutive clinical speci...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.9.2136-2138.1990
更新日期:1990-09-01 00:00:00
abstract::A total of 145 clinical strains of Candida species were tested by the Clinical and Laboratory Standards Institute M27-A3 methodology to determine if replacing water with dimethyl sulfoxide as the solvent for fluconazole and flucytosine impacted the in vitro potency. No significant differences in MIC values were observ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00260-13
更新日期:2013-06-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.22.6.951-954.1985
更新日期:1985-12-01 00:00:00
abstract::Because self-collected vaginal swabs (VS) are potentially very useful for screening asymptomatic women for Chlamydia trachomatis infection, a multicenter study evaluated that specimen with nucleic acid amplification tests (NAATs). The objective was to determine whether VS are equal to Food and Drug Administration (FDA...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/jcm.41.8.3784-3789.2003
更新日期:2003-08-01 00:00:00
abstract::A newly developed commercial serological test (Iatron Laboratories, Inc., Tokyo, Japan) for the rapid identification of medically important species of Candida was evaluated against the API 20C (Analytab Products, Plainview, N.Y.) and the standard Wickerham assimilation and fermentation procedures. Our results indicate...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.13.3.513-518.1981
更新日期:1981-03-01 00:00:00
abstract::Porphyromonas gingivalis is implicated in the etiology of chronic periodontitis. Genotyping studies suggest that genetic variability exists among P. gingivalis strains; however, the extent of variability remains unclear and regions of variability remain largely unidentified. To assess P. gingivalis strain diversity, w...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00569-09
更新日期:2009-10-01 00:00:00
abstract::We mapped the coding single nucleotide polymorphisms in four toxin genes-exoS, exoT, exoU, and exoY-of the Pseudomonas aeruginosa type III secretion system among several clinical isolates. We then used this information to design a multiplex PCR assay based on the simultaneous amplification of fragments of these genes....
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.8.3526-3531.2003
更新日期:2003-08-01 00:00:00
abstract::Hepatitis C virus (HCV) infection typically leads to antibody response within weeks after primary infection. Here, we describe the case of a child infected with HCV by mother-to-child transmission who remained persistently seronegative despite the presence of high levels of circulating HCV RNA. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00622-12
更新日期:2012-07-01 00:00:00
abstract::Participants in the College of American Pathologists' Mycobacteriology E proficiency testing survey in 1993 were asked to complete a questionnaire addressing mycobacterial test methods, test volume, and frequency of detection of drug-resistant Mycobacterium tuberculosis (MTB). A similar questionnaire had been distribu...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.2.407-412.1995
更新日期:1995-02-01 00:00:00
abstract::In this work, we describe the assembly of a synthetic gene coding for several antigenic determinants found in different Leishmania infantum antigens. Selected epitopes were derived from the ribosomal proteins LiP2a, LiP2b, and LiP0 and from the histone H2A. The resulting gene was overexpressed in Escherichia coli eith...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.1.58-63.1998
更新日期:1998-01-01 00:00:00
abstract::Twenty-three young adult rhesus monkeys from China were evaluated for the presence of Helicobacter pylori. Gastric body and antral biopsy samples were tested for H. pylori by PCR analysis, culture, rapid urease testing, and histologic evaluation. Serologic testing to detect H. pylori immunoglobulin G (IgG) antibodies ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.1.165-168.1997
更新日期:1997-01-01 00:00:00
abstract::Forty-five percent of 108 nontypable strains of Staphylococcus aureus from clinical and environmental sources were phage typable after heat shock and acridine orange treatment. Although phage patterns were produced by different types of treatment, the same phage groups were present, showing specificity. The newly typa...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1976-10-01 00:00:00
abstract::Salmonella enterica serovar Heidelberg is the second most frequently occurring serovar in Quebec and the third-most prevalent in Canada. Given that conventional pulsed-field gel electrophoresis (PFGE) subtyping for common Salmonella serovars, such as S. Heidelberg, yields identical subtypes for the majority of isolate...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02200-15
更新日期:2016-02-01 00:00:00
abstract::We have investigated 677 Shiga toxin-producing Escherichia coli (STEC) strains from humans to determine their serotypes, virulence genes, and clinical signs in patients. Six different Shiga toxin types (1, 1c, 2, 2c, 2d, and 2e) were distributed in the STEC strains. Intimin (eae) genes were present in 62.6% of the str...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/jcm.42.3.1099-1108.2004
更新日期:2004-03-01 00:00:00
abstract::Multiple-locus variable-number tandem-repeat analysis (MLVA) was performed with 292 methicillin-resistant Staphylococcus aureus (MRSA) isolates previously characterized by pulsed-field gel electrophoresis, multilocus sequence typing, and staphylococcal cassette chromosome mec typing. Quantitative correspondence analys...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02220-09
更新日期:2010-08-01 00:00:00
abstract::Two previously demonstrated sensitive and specific enzyme immunoassays (EIAs) for rotavirus, one using polyclonal and monoclonal antisera (TestPack Rotavirus [TPK]; Abbott Laboratories) and the other using only monoclonal anti-rotavirus antibodies (Rotaclone [RTC]; Cambridge BioScience Corporation), were evaluated as ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.6.1280-1283.1990
更新日期:1990-06-01 00:00:00
abstract::Herpes simplex virus (HSV) infections of the central nervous system (CNS) are associated with significant morbidity and mortality rates in children. This study assessed the impact of a direct HSV (dHSV) PCR assay on the time to result reporting and the duration of acyclovir therapy for children with signs and symptoms...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02559-16
更新日期:2017-05-01 00:00:00
abstract::A modified Elek test and an immuno-halo test were developed for detection of the thermostable direct hemolysin produced by Kanagawa phenomenon-positive strains of Vibrio parahaemolyticus. The sensitivity of the modified Elek test was almost the same as that of the Kanagawa phenomenon on Wagatsuma medium, and the resul...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.11.6.600-603.1980
更新日期:1980-06-01 00:00:00
abstract::The recent emergence of the multidrug-resistant and pathogenic yeast Candida auris continues to cause public health concern worldwide. C. auris is alarming because it causes health care-associated outbreaks and can establish invasive infections with high mortality rates. Transmission between patients is facilitated by...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01337-18
更新日期:2018-11-27 00:00:00
abstract::In a collaborative study at three university hospitals, the recovery of microorganisms and the speed of detection of microbial growth by the BacT/Alert (Organon Teknika Corporation, Durham, N.C.) and BACTEC 660/730 (Becton-Dickinson Diagnostic Instrument Systems, Sparks, Md.) nonradiometric blood culture systems were ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.2.323-329.1992
更新日期:1992-02-01 00:00:00