EHEC
... • contaminated water (can survive for months) • in this case probably contaminated vegetables which got in contact with faeces of infected animals ...
... • contaminated water (can survive for months) • in this case probably contaminated vegetables which got in contact with faeces of infected animals ...
Chapter 8 Disinfection、sterilization and validation
... – When chemical substances penetrate into bacteria, they will denature bacterial protein, decrease the activity of bacterial enzyme, inhibit bacterial growth and metabolism, or damage the structure of cell membrane, change membrane permeability. ...
... – When chemical substances penetrate into bacteria, they will denature bacterial protein, decrease the activity of bacterial enzyme, inhibit bacterial growth and metabolism, or damage the structure of cell membrane, change membrane permeability. ...
The Human Cell as an Environment for Horizontal Gene Transfer
... every biological kingdom. As such, conjugative mechanisms of DNA transfer are necessary for a host of spectacular phenotypes such as symbiosis, virulence and antibiotic resistance. The conjugative mechanism is also related to the means of translocating and transferring proteins from bacteria to othe ...
... every biological kingdom. As such, conjugative mechanisms of DNA transfer are necessary for a host of spectacular phenotypes such as symbiosis, virulence and antibiotic resistance. The conjugative mechanism is also related to the means of translocating and transferring proteins from bacteria to othe ...
Role of Hypoxia Inducible Factor-1α (HIF
... prevalence of UTI and rapid emergence of antibiotic-resistant bacteria, new effective strategies to prevent and treat UTI are urgently needed. Here, we describe a global regulatory role of transcription factor hypoxia-inducible factor-1 (HIF-1) in innate antimicrobial defense against UPEC. HIF-1 sta ...
... prevalence of UTI and rapid emergence of antibiotic-resistant bacteria, new effective strategies to prevent and treat UTI are urgently needed. Here, we describe a global regulatory role of transcription factor hypoxia-inducible factor-1 (HIF-1) in innate antimicrobial defense against UPEC. HIF-1 sta ...
- Journal of Vascular Surgery
... avoid bacterial contamination. In two cases, this procedure was performed concomitantly with other operations (a major above-knee amputation in one case and a colostomy closure in the other). Segments of arteries were also obtained from seven patients, who underwent surgical treatment for vascular d ...
... avoid bacterial contamination. In two cases, this procedure was performed concomitantly with other operations (a major above-knee amputation in one case and a colostomy closure in the other). Segments of arteries were also obtained from seven patients, who underwent surgical treatment for vascular d ...
Resistance to Fluoroquinolones in Escherichia coli
... There are genetic factors within the bacterial genome that by themselves do not increase resistance to antibiotics but can ensure that a certain proportion of the bacterial population is resistant. For example, the tolerance phenomenon enables a small fraction of cells to survive despite the presenc ...
... There are genetic factors within the bacterial genome that by themselves do not increase resistance to antibiotics but can ensure that a certain proportion of the bacterial population is resistant. For example, the tolerance phenomenon enables a small fraction of cells to survive despite the presenc ...
lab 2: aseptic technique and transfer of microorganisms
... revolution began in the late nineteenth century. When streptomycin, the first antibiotic effective against M. tuberculosis, was discovered in the early 1940s, the infection began to come under control. Although other more effective antituberculosis drugs were developed in the following decades, the ...
... revolution began in the late nineteenth century. When streptomycin, the first antibiotic effective against M. tuberculosis, was discovered in the early 1940s, the infection began to come under control. Although other more effective antituberculosis drugs were developed in the following decades, the ...
Bacterial survival in evaporating deposited droplets on a
... found in the longevities (the times for which organisms would survive) of different organisms atomized in small droplets into the air (Wells 1955). Riley and O’Grady (1961) reviewed the viability studies of Dunklin and Puck (1948), Wells (1955), and Ferry et al. (1958) and found an interesting pheno ...
... found in the longevities (the times for which organisms would survive) of different organisms atomized in small droplets into the air (Wells 1955). Riley and O’Grady (1961) reviewed the viability studies of Dunklin and Puck (1948), Wells (1955), and Ferry et al. (1958) and found an interesting pheno ...
DEVELOPMENT AND CHARACTERIZATION OF SULFIDE-OXIDIZING BIOFILMS UNIVERSITAT AUTÒNOMA DE BARCELONA Facultat de Ciències
... western countries. Industrialization and massive urbanization of some areas have concentrated pollutants derived from human and industrial activities. The most extended pollution is due to wastewater containing high loads of organic matter, and usually also nitrogen and phosphorus compounds. These c ...
... western countries. Industrialization and massive urbanization of some areas have concentrated pollutants derived from human and industrial activities. The most extended pollution is due to wastewater containing high loads of organic matter, and usually also nitrogen and phosphorus compounds. These c ...
2. Bacteria and archaea are the two main branches of prokaryote
... • Many antibiotics, including penicillins, inhibit the synthesis of cross-links in peptidoglycans, preventing the formation of a functional wall, particularly in gram-positive species. • These drugs are a very selective treatment because they cripple many species of bacteria without affecting human ...
... • Many antibiotics, including penicillins, inhibit the synthesis of cross-links in peptidoglycans, preventing the formation of a functional wall, particularly in gram-positive species. • These drugs are a very selective treatment because they cripple many species of bacteria without affecting human ...
Microbial Ecology
... (providing vitamins, enzymes, and essential fatty acids for the host), immune responses, and disease resistance [3, 19, 26, 31, 46, 56, 62, 64]. An increased susceptibility to infections may be related to the lack of the barrier provided by microbiota, which compete with pathogenic microorganisms fo ...
... (providing vitamins, enzymes, and essential fatty acids for the host), immune responses, and disease resistance [3, 19, 26, 31, 46, 56, 62, 64]. An increased susceptibility to infections may be related to the lack of the barrier provided by microbiota, which compete with pathogenic microorganisms fo ...
introduction
... This membranous network covers over the site of the local lesion and is referred to as the pseudomembrane. The diphtheria bacilli do not tend to invade tissues below or away from the surface epithelial cells at the site of the local lesion. At this site they produce the toxin that is absorbed and di ...
... This membranous network covers over the site of the local lesion and is referred to as the pseudomembrane. The diphtheria bacilli do not tend to invade tissues below or away from the surface epithelial cells at the site of the local lesion. At this site they produce the toxin that is absorbed and di ...
Ch. 24 Text
... A key feature of nearly all prokaryotic cells is their cell wall, which maintains cell shape, protects the cell, and prevents it from bursting in a hypotonic environment Eukaryote cell walls are made of cellulose or chitin Bacterial cell walls contain peptidoglycan, a network of modified sugar ...
... A key feature of nearly all prokaryotic cells is their cell wall, which maintains cell shape, protects the cell, and prevents it from bursting in a hypotonic environment Eukaryote cell walls are made of cellulose or chitin Bacterial cell walls contain peptidoglycan, a network of modified sugar ...
The Immune System
... A key feature of nearly all prokaryotic cells is their cell wall, which maintains cell shape, protects the cell, and prevents it from bursting in a hypotonic environment Eukaryote cell walls are made of cellulose or chitin Bacterial cell walls contain peptidoglycan, a network of modified sugar ...
... A key feature of nearly all prokaryotic cells is their cell wall, which maintains cell shape, protects the cell, and prevents it from bursting in a hypotonic environment Eukaryote cell walls are made of cellulose or chitin Bacterial cell walls contain peptidoglycan, a network of modified sugar ...
View PDF - OMICS International
... Scanning electron microscopy (SEM) images clearly showed that this extract induces firm aggregation of MRSA (in Fig.1A). This firm aggregation is a characteristic action to Staphylococcus aureus. Using VRE (NCTC12201), bacteriolysis was clearly observed after addition of this extract alone, but the ...
... Scanning electron microscopy (SEM) images clearly showed that this extract induces firm aggregation of MRSA (in Fig.1A). This firm aggregation is a characteristic action to Staphylococcus aureus. Using VRE (NCTC12201), bacteriolysis was clearly observed after addition of this extract alone, but the ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... well as in devel-oped ones. HAIs are known to be a major cause of high morbidity and mortality in hospitalized patients.(1) Prevalence of HAI ranges from 3.8% to 18.6% depending on the population surveyed and the definitions used.(2) It is estimated that 80% of all hospital deaths are directly or in ...
... well as in devel-oped ones. HAIs are known to be a major cause of high morbidity and mortality in hospitalized patients.(1) Prevalence of HAI ranges from 3.8% to 18.6% depending on the population surveyed and the definitions used.(2) It is estimated that 80% of all hospital deaths are directly or in ...
Genetic and functional characterization of Caenorhabditis elegans
... infecting a broad range of organisms points to the existence of universal virulence factors necessary for full pathogenicity in every host. On the other hand, the remarkable host specificity shown by some pathogens, e.g. the human specific gastric pathogen Heliobacter pylori, the causative agent in ...
... infecting a broad range of organisms points to the existence of universal virulence factors necessary for full pathogenicity in every host. On the other hand, the remarkable host specificity shown by some pathogens, e.g. the human specific gastric pathogen Heliobacter pylori, the causative agent in ...
Bacterial Growth and Division
... ions, metabolites, and cofactors, macromolecules such as soluble enzymes, tRNAs, mRNAs, and higher complexes such as ribosomes. Peptidoglycan The stress-bearing, presumably shape-maintaining, layer of the bacterial cell wall. It is composed of glycan chains cross-linked with amino acids. Cell Membra ...
... ions, metabolites, and cofactors, macromolecules such as soluble enzymes, tRNAs, mRNAs, and higher complexes such as ribosomes. Peptidoglycan The stress-bearing, presumably shape-maintaining, layer of the bacterial cell wall. It is composed of glycan chains cross-linked with amino acids. Cell Membra ...
Foodborne Illness, Kirk Smith, MDH (PDF: 626KB/60 pages)
... – Phrase often shortened as “flu” Confused with influenza, a respiratory illness • Not a specific disease caused by a single germ – In many instances probably used to describe illness caused by norovirus ...
... – Phrase often shortened as “flu” Confused with influenza, a respiratory illness • Not a specific disease caused by a single germ – In many instances probably used to describe illness caused by norovirus ...
December 2015 Vol. 16, No. 4 - Society for Applied Microbiology
... What would happen in a world without war? A lot less famine and disease that’s for certain What history has taught us is that deadly infectious diseases ruthlessly exploit the conditions created by war, affecting armies and civilians. In fact one of those facts you’ve often heard, but never quite kn ...
... What would happen in a world without war? A lot less famine and disease that’s for certain What history has taught us is that deadly infectious diseases ruthlessly exploit the conditions created by war, affecting armies and civilians. In fact one of those facts you’ve often heard, but never quite kn ...
Qualitative and quantitative methodologies for determination of
... used for the detection of total fungal spores and pollen. In addition to the Andersen impactors, there are other impaction-based devices, such as the rotating impactor, slit sampler, and sieve-type sampler (Crook 1995b). Disadvantages associated with culture-based impactors are: (a) detection of mic ...
... used for the detection of total fungal spores and pollen. In addition to the Andersen impactors, there are other impaction-based devices, such as the rotating impactor, slit sampler, and sieve-type sampler (Crook 1995b). Disadvantages associated with culture-based impactors are: (a) detection of mic ...
EXAMINATION QUESTIONS
... bacterial cell: basic and facultative ones. 9. Composition of bacterial cell wall. Defective forms of bacteria. Morphological features of bacteria. 10. Shape of bacteria: bacteria having certain shape and bacteria without certain shape. 11. Size of bacteria: cocci and rods. Arrangement of bacterial ...
... bacterial cell: basic and facultative ones. 9. Composition of bacterial cell wall. Defective forms of bacteria. Morphological features of bacteria. 10. Shape of bacteria: bacteria having certain shape and bacteria without certain shape. 11. Size of bacteria: cocci and rods. Arrangement of bacterial ...
New spiral bacterium in gastric mucosa
... showed a spirillum with bipolar multiple flagella, and all their attempts to culture the organism aerobically, microaerobically and anaerobically were unsuccessful. These factors suggest that our organism may be closely related to this dog organism but in the dog colonisation was not associated with ...
... showed a spirillum with bipolar multiple flagella, and all their attempts to culture the organism aerobically, microaerobically and anaerobically were unsuccessful. These factors suggest that our organism may be closely related to this dog organism but in the dog colonisation was not associated with ...
Type III Protein Secretion in Plant Pathogenic Bacteria
... cytoplasm of eukaryotic cells. Central to this belief is the observation that T3SSs in different bacteria invariably assemble filamentous supramolecular structures (He et al., 2004). Although the first T3SS-associated filamentous structure was discovered in the plant pathogen P. syringae (Roine et a ...
... cytoplasm of eukaryotic cells. Central to this belief is the observation that T3SSs in different bacteria invariably assemble filamentous supramolecular structures (He et al., 2004). Although the first T3SS-associated filamentous structure was discovered in the plant pathogen P. syringae (Roine et a ...
ABSTRACT
... antibiotic multi-resistance is the mecA gene, which is responsible for the synthesis of the penicinilase binding proteins (PBPs) (Reynolds, 1988). S. aureus strains carriers of this gene become resistant to methicillin, a third generation antibiotic resistant to betalactamases, and has been associat ...
... antibiotic multi-resistance is the mecA gene, which is responsible for the synthesis of the penicinilase binding proteins (PBPs) (Reynolds, 1988). S. aureus strains carriers of this gene become resistant to methicillin, a third generation antibiotic resistant to betalactamases, and has been associat ...