Abstract:
:The CO2, O2, and pH levels of commercially available blood culture bottles with tryptic soy broth medium from five different manufacturers were compared. Ranges of 1.3 to 6.9% for CO2, 1.1 to 6.0% for O2, and pH 6.94 to 7.26 were found. Different venting procedures revealed that blood culture bottles from which the rubber diaphragm was removed equilibrated the most rapidly (24 h) to the atmosphere (10, 5, and 2.5% CO2) they were incubated in. In contrast, blood culture bottles vented with cotton-plugged needles required 48 h to achieve similar CO2 levels in the medium. The ability of these venting procedures to support bacterial growth was confirmed by measuring the growth of a CO2-dependent Escherichia coli isolate in such vented bottles; blood culture bottles that showed rapid atmospheric (5 and 10% CO2) equilibration had the fastest growth curves. Our results suggest that the differences in the recovery of certain microorganism from blood culture bottles may be due in part to the large variability seen in CO2 and O2 concentrations and the use of various venting procedures.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Welch WD,Porschen RK,Zarifi SZdoi
10.1128/JCM.20.5.881-883.1984subject
Has Abstractpub_date
1984-11-01 00:00:00pages
881-3issue
5eissn
0095-1137issn
1098-660Xjournal_volume
20pub_type
杂志文章abstract::Tremendous interest has been generated in the commercial kits now available that incorporate herpes simplex virus isolation in cell culture with immunoperoxidase staining for viral antigen detection. Most studies comparing commercial kits with conventional cell culture techniques have found the kits to be less sensiti...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.8.1401-1405.1987
更新日期:1987-08-01 00:00:00
abstract::To evaluate the risk of a nosocomial spread of Pneumocystis carinii f. sp. hominis (P. carinii hominis), air filter samples from rooms of P. carinii pneumonia (PCP) patients, adjacent corridors, and other hospital environments have been investigated for the presence of P. carinii hominis. Amplified DNA from air filter...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.6.1737-1740.1998
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.8.1610-1615.1991
更新日期:1991-08-01 00:00:00
abstract::Bacillus anthracis and Bacillus cereus are closely related pathogenic organisms that are difficult to differentiate phenotypically or genotypically. It is well known that vegetative and spore forms of bacilli are quite distinct both morphologically and chemically, but spore-specific chemical markers allowing these spe...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.4.887-894.1993
更新日期:1993-04-01 00:00:00
abstract::We assessed neutralizing antibody titers to adenovirus serotype 5 (Ad5) and six rare adenovirus serotypes, serotypes 11, 35, 50, 26, 48, and 49, in pediatric populations in sub-Saharan Africa. We observed a clear age dependence of Ad5-specific neutralizing antibody titers. These data will help to guide the development...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01249-06
更新日期:2006-10-01 00:00:00
abstract::Ten strains of enterotoxigenic Escherichia coli producing heat-labile enterotoxin (LT) were preserved under 12 different conditions. After 1 month, 9 months, and 3 years of preservation, the cultures were recovered and examined for LT production. Preservation of the cultures on Dorset Egg Medium at 4 degrees C and pre...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.10.2326-2328.1991
更新日期:1991-10-01 00:00:00
abstract::The group B streptococcus (GBS) capsular polysaccharide (CPS) is an important virulence factor which is also used for GBS typing. There are 10 CPS types (Ia, Ib, and II to IX). GBS that do not phenotypically type are considered nontypeable. All genes required for CPS synthesis are found on the GBS cps operon, which co...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00300-17
更新日期:2017-09-01 00:00:00
abstract::To study the population structure of Enterococcus faecalis from Polish hospitals, 291 isolates were typed by pulsed-field gel electrophoresis and a novel multilocus sequence typing scheme (P. Ruiz-Garbajosa et al., J. Clin. Microbiol. 44:2220-2228, 2006). The isolates originated from geographically widespread medical ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01704-06
更新日期:2007-01-01 00:00:00
abstract::A fluorogenic assay for the detection of beta-glucosidase was developed as part of a simplified conventional method to distinguish Staphylococcus warneri and Staphylococcus hominis isolated from bovine body sites. The assay is based on the fact that strains of S. warneri produce beta-glucosidase, while strains of S. h...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.3.602-.1990
更新日期:1990-03-01 00:00:00
abstract::The aim of this study was to investigate oral yeast colonization and oral yeast strain diversity in irradiated (head and neck), dentate, xerostomic individuals. Subjects were recruited from a nasopharyngeal carcinoma clinic and were segregated into group A (age, <60 years [n = 25; average age +/- standard deviation (S...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract::A new liquid medium (modified Lombard-Dowell broth) was inoculated with stock culture strains of aerobic and anaerobic bacteria and compared with prereduced chopped-meat glucose inoculated with the same anaerobes. Both broths were subcultured at 48 and 72 h to aerobic and anaerobic blood agar plates, and the numbers o...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1977-11-01 00:00:00
abstract::One hundred ninety-three Streptococcus agalactiae isolates of neonatal origin and 146 isolates from adult women were analyzed for macrolide resistance and investigated for clonality. Among erythromycin-resistant isolates, serotype V turned out to be the most frequent. Comparative pulsed-field gel electrophoresis analy...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.5.2166-2169.2003
更新日期:2003-05-01 00:00:00
abstract::A loop-mediated isothermal amplification (LAMP) assay for open reading frame 1 (ORF1) of the glutamine synthetase gene of Neisseria gonorrhoeae was able to tolerate urea concentrations of ≤ 1.8 M, compared with a PCR assay that was functional at concentrations of <100 mM. The LAMP assay was as sensitive as the PCR ass...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00314-14
更新日期:2014-06-01 00:00:00
abstract::A method of phage subtyping group A type 49 streptococci is described. The method is similar to that used for phage typing staphylococci, except that lysates obtained by induction with mitomycin C rather than propagated stock phages were used. Five type 49 strains were used as phage donors. Seventy-two strains of type...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1976-09-01 00:00:00
abstract::The ability of Yersinia to digest polypectate may be of some value in differentiating Y. enterocolitica and Y. pseudotuberculosis from some of the other fermenting gram-negative bacilli, such as Enterobacter agglomerans, with which they can be confused. Pectolytic activity in Yersinia may also have some teleologic or ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1975-12-01 00:00:00
abstract::Achromobacter species are increasingly being detected in cystic fibrosis (CF) patients, with an unclear epidemiology and impact. We studied a cohort of patients attending a Canadian adult CF clinic who had positive sputum cultures for Achromobacter species in the period from 1984 to 2013. Infection was categorized as ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02556-16
更新日期:2017-07-01 00:00:00
abstract::A slight modification of the chemically defined medium of McVeigh and Morton resulted in an excellent substratum for the cultivation of Paracoccidioides brasiliensis yeast phase. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.12.2.279-281.1980
更新日期:1980-08-01 00:00:00
abstract::Two multiplex PCR enzyme immunoassays (PCR-EIAs) were developed for Staphylococcus aureus exotoxin gene screening as an alternative to the conventional biological assays, which depend on detectable amounts of toxins produced. One set of oligonucleotide primers and probes was designed to search for enterotoxin A to E g...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.9.2548-2553.1998
更新日期:1998-09-01 00:00:00
abstract::We report a case of pneumonia with a fatal outcome caused by a nonhemolytic strain of Streptococcus pyogenes. This strain was isolated in pure growth from blood cultures and was fully identified biochemically. Such strains will be difficult to recognize and isolate from sites with heavy growth of normal flora. This ph...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.6.2311-2312.2002
更新日期:2002-06-01 00:00:00
abstract::The control of vancomycin-resistant enterococci (VRE) has become an increasing burden on health care resources since their discovery over 20 years ago. Current techniques employed for their detection include time-consuming and laborious phenotypic methods or molecular methods requiring costly equipment and consumables...
journal_title:Journal of clinical microbiology
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更新日期:2012-09-01 00:00:00
abstract::Aeromonas caviae was recovered as the sole potential enteric pathogen from the stools of 14 of 17 symptomatic children (10 younger than 1 year of age) while Aeromonas hydrophila, Aeromonas sobria, and Plesiomonas shigelloides were isolated once each. The infants from whom A. caviae was isolated all presented with a wa...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.5.837-840.1990
更新日期:1990-05-01 00:00:00
abstract::The detection of porphyrins produced from omega-aminolevulinic acid was evaluated for use in speciation of the Haemophilus. Two hundred and forty-eight clinical isolates of nonhemolytic Haemophilus were tested concurrently for porphyrin production and for X and V requirements. The porphyrin production test was more ra...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1977-02-01 00:00:00
abstract::Enterococcus cecorum (formerly Streptococcus cecorum), originally isolated from poultry intestines, has rarely been encountered in human diseases. A 60-year-old man with liver cirrhosis and hepatocellular carcinoma developed peritonitis on the seventh day of his hospitalization. Cultures of one blood sample and one as...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract::The food-borne pathogen Listeria monocytogenes is genetically heterogeneous. Although some clonal groups have been implicated in multiple outbreaks, there is currently no consensus on how "epidemic clones" should be defined. The objectives of this work were to compare the patterns of sequence diversity on two sets of ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01874-13
更新日期:2013-11-01 00:00:00
abstract::Better detection of minority human immunodeficiency virus type 1 (HIV-1) populations containing gene mutations may improve the usefulness of antiretroviral resistance testing for clinical management. Molecular cloning of HIV-1 PCR products which might improve minority detection can be slow and difficult, and commercia...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.9.2943-2951.1999
更新日期:1999-09-01 00:00:00
abstract::Serotyping Streptococcus pneumoniae is a technique generally confined to reference laboratories, as purchasing pneumococcal antisera is a huge investment. Many attempts have been made to modify serological agglutination techniques to make them more accessible, and more recently developments in serotyping have focused ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.6.2656-2661.2005
更新日期:2005-06-01 00:00:00
abstract::Extended incubation of culture plates was studied to see if the recovery of Bordetella spp. from nasopharyngeal swabs could be improved. Forty-eight Bordetella isolates were recovered from 103 children (overall positive-culture rate, 46.6%) who met the clinical case definition of pertussis. Seven of 44 (16%) B. pertus...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.6.1563-1564.1996
更新日期:1996-06-01 00:00:00
abstract::A DNA microarray for detection of Campylobacter spp. was recently developed and applied to detect Campylobacter spp. directly from chicken feces. Sixty-five pooled chicken cloacal swab samples from 650 individual broiler chickens were included in the study. The results of Campylobacter sp. detection obtained with DNA ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.42.9.3985-3991.2004
更新日期:2004-09-01 00:00:00
abstract::High-risk human papillomavirus (hrHPV) testing is now being introduced as a potential primary screening test for improved detection of cervical precancer and cancer. Current U.S. Food and Drug Administration-approved tests are batch tests that take several hours to complete. A rapid, non-batch test might permit point-...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/JCM.00176-14
更新日期:2014-06-01 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