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Topic: Enterobacteriaceae


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In the News (Tue 24 Nov 09)

  
  Enterobacteriaceae - Wikipedia, the free encyclopedia
The Enterobacteriaceae are a large family of bacteria, including many of the more familiar pathogens, such as Salmonella and Escherichia coli.
Genetic studies place them among the Proteobacteria, and they are given their own order (Enterobacteriales), though this is sometimes taken to include some related environmental samples.
Members of the Enterobacteriaceae are rod-shaped, and are typically 1-5 μm in length.
en.wikipedia.org /wiki/Enterobacteriaceae   (191 words)

  
 enterics.html
As stated above, one of the reasons that the enterobacteriaceae have ben so widely studied is due to their obvious impact on human and animal health and on agricultural practice.
Enterobacteriaceae as a group were originally divided into pathogens and nonpathogens based on their ability to cause diarrheal disease of humans.
Enterobacteriaceae not normally associated with the GI tract or diarrheal disease may still be pathogens of humans.
textbookofbacteriology.net /enterics.html   (6070 words)

  
 3M Microbiology Products: What's New - MicroMessenger Newsletter   (Site not responding. Last check: 2007-10-08)
Enterobacteriaceae testing is an excellent sanitation indicator particularly in dry food processing environments where coliform organisms may not survive, but where non-coliform pathogenic organisms such as Salmonella, Shigella and Yersinia could survive.
Enterobacteriaceae produce acid and/or gas from glucose during the metabolic fermentation that identifies their presence.
Members of the Enterobacteriaceae family commonly colonize both wet and dry factory environments and are excellent indicators of equipment contamination from environmental sources.
www.3m.com /petrifilm/home/new/micromsg/q495.html   (1304 words)

  
 Enterobacteriaceae
Enterobacteriaceae is a family of Gram-negative bacilli that contains more than 100 species of bacteria that normally inhabit the intestines of humans and animals.
Enterobacteriaceae, that are commonly part of the normal intestinal tract flora, are referred to as coliforms.
Klebsiella is a major species of the Enterobacteriaceae, and is the cause of primary pneumonia in older people already suffering from such other illnesses as chronic bronchitis, diabetes, or alcoholism.
www.innvista.com /HEALTH/MICROBES/bacteria/entero.htm   (700 words)

  
 3M Microbiology Products: Enterobacteriaceae - Interpretation Guide   (Site not responding. Last check: 2007-10-08)
As the Enterobacteriaceae count increases, the color of the gel lightens from purple to yellow or cream colored.
The recommended counting range on Petrifilm Enterobacteriaceae Count plate is 15-100 colonies.
Petrifilm Enterobacteriaceae Count plates with more than 100 colonies are considered too numerous to count (TNTC) and have a light background color along with at least one of the following characteristics: many small colonies or many gas bubbles.
www.3m.com /petrifilm/home/products/petrifilm/petriprod/enterobact/intguide.html   (207 words)

  
 Encyclopedia: Enterobacteriaceae   (Site not responding. Last check: 2007-10-08)
Binomial name Escherichia coli T. Escherich, 1885 E. coli at 10,000x magnification Escherichia coli (usually abbreviated to E. coli) is one of the main species of bacteria that live in the lower intestines of warm-blooded animals (including birds and mammals) and are necessary for the proper digestion of...
Enterobacter is a genus of common gram-negative aerobic bacteria of the family Enterobacteriaceae.
Serratia marcescens is a Gram negative bacterium, a human pathogen of the family Enterobacteriaceae.
www.nationmaster.com /encyclopedia/Enterobacteriaceae   (1115 words)

  
 CDC - Nursing Home Residents and Enterobacteriaceae Resistant to Third-Generation Cephalosporins
The distribution of types of Enterobacteriaceae among case-residents and control-residents is shown in Table 1.
Enterobacteriaceae infections resistant to cephalosporins are of concern in long-term care facilities and in the acute-care setting (1–9).
Patients with infections resistant to third-generation cephalosporins have been reported to have had longer hospital stays, higher death rates, and greater hospital costs than patients whose infections are susceptible to third-generation cephalosporins (4).
www.cdc.gov /NCIDOD/eid/vol10no6/03-0662.htm   (3281 words)

  
 ENTEROBACTERIACEAE   (Site not responding. Last check: 2007-10-08)
Members of genera belonging to the Enterobacteriaceae family have earned a reputation placing them among the most pathogenic and most often encountered organisms in clinical microbiology.
Because many different species in this family can cause similar symptoms, biochemical tests are crucial to the identification, diagnosis, and treatment of infection.
We will discuss the twelve genera of the Enterobacteriaceae family which are most commonly encountered in the clinical laboratory:
medic.med.uth.tmc.edu /path/00001500.htm   (165 words)

  
 Enterobacteriaceae and Enterobacteria   (Site not responding. Last check: 2007-10-08)
Enterobacteriaceae is the Latin name for the genus and enterobacteria is the "English" shortened name for this group of bacteria.
Ron Baker, Ph.D. Enterobacteriaceae is the name of the taxonomic Family containing the enterobacteria.
The term, enterobacteria, is essentially a common name for the members of this family, so you could say that they are synonymous under most circumstances.
www.newton.dep.anl.gov /askasci/mole00/mole00527.htm   (264 words)

  
 Enterobacteriaceae Rahn 1937, familia
The family name Enterobacteriaceae was omitted from the body of the Approved Lists of Bacterial Names 1980, but a footnote was inserted on page 236 indicating that the name was sub judice, referring to the proposal by Lapage.
The Judicial Commission has reviewed this question and concluded that the family name Enterobacteriaceae Rahn 1937 is valid and should have been incorporated in the body of the Approved Lists of Bacterial Names 1980.
According to Judicial Opinion 15 the type genus of the family Enterobacteriaceae Rahn 1937 (Approved Lists 1980) is the genus ¤ Escherichia Castellani and Chalmers 1919 (Approved Lists 1980); not the genus ¤ Enterobacter Hormaeche and Edwards 1960 (Approved Lists 1980).
www.bacterio.cict.fr /e/enterobacteriaceae.html   (907 words)

  
 Duodenal Microflora in Very-Low-Birth-Weight Neonates and Relation to Necrotizing Enterocolitis -- Hoy et al. 38 (12): ...
Enterobacteriaceae have been associated with outbreaks of NEC (60) and implicated in endemic cases of disease.
Plasmid profiling of members of the family Enterobacteriaceae, lactobacilli, and bifidobacteria to study transmission of bacteria from mother to infant.
Epidemiology of fecal strains of the family Enterobacteriaceae in 22 neonatal wards and influence of antibiotic policy.
jcm.asm.org /cgi/content/full/38/12/4539   (4853 words)

  
 Teagasc - A Nationwide Surveillance Study on E.coli 0157:H7 and Enterobacteriaceae in Irish Minced Beef Products
Equally, there was no significant difference between Enterobacteriaceae counts on beefburgers obtained from butcher or supermarket outlets.
It was noted that the Enterobacteriaceae counts on fresh unpackaged mince were significantly higher than on fresh unpackaged burgers.
Unpackaged fresh mince had the highest Enterobacteriaceae count in each 3 monthly period regardless of whether the product was purchased from supermarkets (log104.64 cfu/g) or butcher outlets (log 104.42 cfu/g).
www.teagasc.ie /research/reports/foodprocessing/5034/eopr5034.htm   (391 words)

  
 Detailed Susceptibility
Actinobacillus sp., E. coli, P. mirabilis, and Salmonella, and widespread resistance by Enterobacteriaceae (though they are considered part of the general spectrum).
Enterobacteriaceae including Enterobacter sp., E. coli, Klebsiella sp., Proteus sp., Serratia sp., Yersinia sp., Brucella sp., Campylobacter sp., Haemophilus sp., and Pasteurella sp.
Enterobacteriaceae, Pseudomonas sp., Nocardia sp., Mycoplasma sp., Chlamydia psittaci, Mycobacterium sp.
cpharm.vetmed.vt.edu /vm8784/ANTIMICROBIALS/susceptibility.htm   (1716 words)

  
 CDC - Rapid Emergence of Ciprofloxacin-Resistant Enterobacteriaceae Containing Multiple Gentamicin ...
This implies that both bacterial strain characteristics and the exchange and dissemination of resistance genes need to be considered during ongoing outbreaks of infection (21).
Our study was prompted by the apparent rise in the incidence of ciprofloxacin-resistant enterobacteriaceae in the hematology wards of the EMCR, as well as a fatal case of ciprofloxacin-resistant E.
Therefore, the small increase in the overall incidence of ciprofloxacin resistance among enterobacteriaceae in the entire hospital was in part attributable to the rise observed in the hematology department.
www.cdc.gov /ncidod/eid/vol7no5/vanbelkum.htm   (4869 words)

  
 Trends in Antimicrobial Susceptibilities among Enterobacteriaceae Isolated from Hospitalized Patients in the United ...
Annual antimicrobial susceptibilities of Enterobacteriaceae from 1998 to 2001 for ICU patients and non-ICU inpatients.
Coresistance among fluoroquinolone-susceptible and fluoroquinolone-resistant isolates of Enterobacteriaceae in 2001 for ICU patients and non-ICU inpatients.
Trends in fluoroquinolone (ciprofloxacin) resistance in Enterobacteriaceae from bacteremias, England and Wales, 1990-1999.
aac.asm.org /cgi/content/full/47/5/1672   (2939 words)

  
 Molecular Characterization of Extended-Spectrum {beta}-Lactamases Produced by Nosocomial Isolates of Enterobacteriaceae ...
Enterobacteriaceae was originally reported in France (4, 8).
Diversity of TEM-type ESBLs in clinical isolates of Enterobacteriaceae from Italian hospitals.
Concurrent outbreaks of extended-spectrum ß-lactamase-producing organisms of the family Enterobacteriaceae in a Warsaw hospital.
jcm.asm.org /cgi/content/full/40/2/611   (3070 words)

  
 Outbreak of Nosocomial Infections Due to Extended-Spectrum beta -Lactamase-Producing Strains of Enteric Group 137, a ...
Enterobacteriaceae (strain 3) (Table 1) was recovered in a culture
Enterobacteriaceae (6, 7, 8, 12), and the tests were
Outbreak of ceftazidime-resistant Klebsiella pneumoniae in a pediatric hospital in Warsaw, Poland: clonal spread of the TEM-47 extended-spectrum
jcm.asm.org /cgi/content/full/38/11/3946   (4472 words)

  
 Carbapenemase in Enterobacteriaceae, U.S. Rivers | CDC EID
Resistance to carbapenems is rare in Enterobacteriaceae and may be mediated by 3 mechanisms: hyperproduction of an AmpC-type cephalosporinase combined with decreased drug permeability through the outer membrane, decreased affinity of penicillin-binding proteins that constitute target proteins for carbapenems, and carbapenem-hydrolyzing β-lactamases (1–3).
Whatever the level of imipenem resistance is, failure of an imipenem-containing regimen may occur when treating infections caused by similar carbapenemase-producing strains, as deduced from results obtained with an animal model of pneumonia (35).
Finally, this study raises the question of the importance of this reservoir in Enterobacteriaceae as well as the origin of this plasmid-located carbapenemase gene that may be transferred among other enterobacterial pathogens.
www.cdc.gov /ncidod/eid/vol11no02/03-0684.htm   (2933 words)

  
 Lund University, Doctoral Dissertation   (Site not responding. Last check: 2007-10-08)
The spoilage flora of refrigerated raw and pasteurized milk was classified and identified by numerical phenotypic analysis.
Enterobacteriaceae isolates were also classified using RAPD analysis.
Aeromonas isolates were tested for possible virulence factors and Enterobacteriaceae isolates for the possession of genes coding for E.coli toxins and virulence factors.
www.lub.lu.se /cgi-bin/show_diss.pl?db=global&fname=tec_91.html   (475 words)

  
 Extended-Spectrum {beta}-Lactamase-Producing Enterobacteriaceae in Community and Private Health Care Centers -- Arpin ...
TEM-24b- or a TEM-21-producing strain, and the fifth one was
Control of a prolonged outbreak of extended-spectrum ß-lactamase-producing Enterobacteriaceae in a university hospital.
Nucleotide sequence of the aacC2 gene, a gentamicin resistance determinant involved in a hospital epidemic of multiply resistant members of the family Enterobacteriaceae.
aac.asm.org /cgi/content/full/47/11/3506   (4855 words)

  
 E-coli - Hutchinson encyclopedia article about E-coli   (Site not responding. Last check: 2007-10-08)
It is probably the organism about which most molecular genetics is known, and is of pre-eminent importance in recombinant DNA research.
Escherichia coli is the only species in the bacterial family Enterobacteriaceae.
Two outbreaks of food poisoning involving a lethal strain of E.
encyclopedia.farlex.com /E-coli   (240 words)

  
 A 1998 Survey of Extended-Spectrum beta -Lactamases in Enterobacteriaceae in France -- De Champs et al. 44 (11): 3177 ...
Enterobacteriaceae isolated from the different samples were as
Cefotaxime-resistant Enterobacteriaceae isolates from a hospital in Warsaw, Poland: identification of a new CTX-M-3 cefotaxime-hydrolyzing
Characterization of ceftriaxone-resistant Enterobacteriaceae: a multicentre study in 26 French hospitals.
aac.asm.org /cgi/content/full/44/11/3177   (2005 words)

  
 Flintbox - Bacterial fimbrial system for the presentation of heterologous peptide sequences
This is a system to genetically modify Salmonella, Eschericia coli or enterobacteriaceae species to produce and display foreign antigens in extremely high numbers on the bacterial surface within fimbriae.
Salmonella transformed with a modified agfA gene, in which foreign DNA is incorporated, are capable of producing fimbriae that comprise of the recombinant proteins.
The AgfA protein is a stable vehicle for the expression of foreign epitopes in enterobacteriaceae and the subsequent fimbriae produced are an ideal bacterial subcomponent for the presentation of foreign epitopes at the cell surface.
www.flintbox.com /technology.asp?Page=695&ShowAll=on   (411 words)

  
 Extended spectrum beta-lactam resistant Enterobacteriaceae: The nosocomial pathogen du jour? Where does the list end?
By 1983, however, resistant Enterobacteriaceae had emerged that produced novel beta-lactamases subsequently found to be descendents of the broad spectrum enzymes (2).
Bacteria-producing ESBLs are identified in the clinical laboratory by their resistance to third generation cephalosporins and susceptibility to beta-lactamase inhibitor compounds such as clavulanic acid and tazobactam (1).
Outbreak of multiply resistant Enterobacteriaceae in an intensive care unit: epidemiology and risk factors for acquisition.
www.pulsus.com /Infdis/10_06/gard_ed.htm   (1981 words)

  
 ARS | Publication request: Identification of Enterobacteriaceae from Washed and Unwashed Commercial Shell Eggs   (Site not responding. Last check: 2007-10-08)
Levels of contamination by Enterobacteriaceae were determined using selective media.
A 1 ml aliquot of each sample was then plated onto violet red bile glucose agar with overlay and incubated at 37 C for 24 h.
A maximum of ten isolates per positive sample were streaked for isolation before being identified to the genus or species level using commercially available biochemical strips.
ars.usda.gov /research/publications/publications.htm?SEQ_NO_115=158551   (447 words)

  
 3M Philippines : Petrifilm Plates
3M™ Petrifilm™ Enterobacteriaceae Count Plates are an effective way to assess environments such as post-process food contact surfaces, and help you quickly reveal potential sources of recontamination.
Enterobacteriaceae is of great importance since these organisms are involved in food spoilage, indicators of fecal contamination of food products, and some are food-borne pathogens.
Since the Petrifilm Enterobacteriaceae Count plate enumerates all coliform organisms plus potential pathogens such as Salmonella, Shigella and Yersinia, it provides a more inclusive picture of potential contamination.
www.3m.com /intl/ph/ExploreMore/Petrifilm/Enterobacteriaceae.html   (155 words)

  
 Emerging Infectious Diseases: Trends in fluoroquinolone resistance in Enterobacteriaceae from bacteremias, England and ...   (Site not responding. Last check: 2007-10-08)
Early researchers thought that fluoroquinolone resistance was unlikely to evolve, largely because resistant Escherichia coli mutants are exceptionally difficult to select in vitro (2) and because plasmid-mediated quinolone resistance remained unknown even after 30 years of nalidixic acid usage.
Nevertheless, mutational fluoroquinolone resistance emerged readily in staphylococci and pseudomonads, which are inherently less susceptible than E. coil More recently, fluoroquinolone resistance has emerged in E. coli and other Enterobacteriaceae, contingent on multiple mutations that diminish the affinity of its topoisomerase II and IV targets in various ways, reduce permeability, and upregulate efflux (3).
We report here resistance trends to ciprofloxacin, the most widely used fluoroquinolone in the United Kingdom, in the prevalent Enterobacteriaceae species from bacteremias in England and Wales during the 1990s.
www.findarticles.com /p/articles/mi_m0GVK/is_5_8/ai_87104038   (1313 words)

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