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Questions and Answers
Which type of bacteria is Escherichia coli?
Which type of bacteria is Escherichia coli?
- Branched bacteria
- Gram-positive spherical bacteria
- Spiral-shaped bacteria
- Gram-negative rod-shaped bacteria (correct)
What is the potential consequence of some strains of E. coli producing a toxin?
What is the potential consequence of some strains of E. coli producing a toxin?
- Mild discomfort and temporary illness
- Increased immunity to bacterial infections
- No impact on human health
- Severe diarrhea and potential fatality (correct)
What is the role of interspecific horizontal gene transfer in pathogen evolution?
What is the role of interspecific horizontal gene transfer in pathogen evolution?
- It slows down pathogen evolution
- It accelerates the extinction of pathogens
- It has no impact on pathogen evolution
- It plays a role in pathogen evolution (correct)
How many virotype of E. coli are mentioned in the text?
How many virotype of E. coli are mentioned in the text?
Which classification of diseases is mentioned in relation to E. coli?
Which classification of diseases is mentioned in relation to E. coli?
What type of bacteria is Salmonella sp.?
What type of bacteria is Salmonella sp.?
What is the potential consequence of consuming a hamburger infected with E. coli?
What is the potential consequence of consuming a hamburger infected with E. coli?
What is the classification of E. coli in terms of bacteria?
What is the classification of E. coli in terms of bacteria?
What is the name of the gene that allows E. coli O157:H7 to attach to intestinal cells?
What is the name of the gene that allows E. coli O157:H7 to attach to intestinal cells?
What is the suspected reason for E. coli O157:H7's ability to cause disease?
What is the suspected reason for E. coli O157:H7's ability to cause disease?
What is the main method through which E. coli O157:H7 is spread to humans?
What is the main method through which E. coli O157:H7 is spread to humans?
What is a phenotype conferred by plasmids in E. coli?
What is a phenotype conferred by plasmids in E. coli?
What is the function of Shiga-like toxins?
What is the function of Shiga-like toxins?
What is the name of the gene responsible for E. coli attaching and effacing?
What is the name of the gene responsible for E. coli attaching and effacing?
How can E. coli O157:H7 be found on cattle farms?
How can E. coli O157:H7 be found on cattle farms?
What is the suspected number of E. coli O157:H7 organisms required to cause disease?
What is the suspected number of E. coli O157:H7 organisms required to cause disease?
Which genera belong to the enteric bacteria within the gamma group of Proteobacteria?
Which genera belong to the enteric bacteria within the gamma group of Proteobacteria?
Which class of E. coli is the leading bacterial cause of diarrhea in children in the developing world?
Which class of E. coli is the leading bacterial cause of diarrhea in children in the developing world?
Which strain of E. coli causes a syndrome identical to Shigellosis, with profuse diarrhea and high fever?
Which strain of E. coli causes a syndrome identical to Shigellosis, with profuse diarrhea and high fever?
Which class of E. coli causes bloody diarrhea, hemolytic-uremic syndrome, and sudden kidney failure?
Which class of E. coli causes bloody diarrhea, hemolytic-uremic syndrome, and sudden kidney failure?
Which class of E. coli binds to the intestinal mucosa to cause watery diarrhea without fever?
Which class of E. coli binds to the intestinal mucosa to cause watery diarrhea without fever?
Which class of E. coli causes diarrhea and lacks fimbriae, ST and LT toxins, but utilizes an adhesin known as intimin to bind host intestinal cells?
Which class of E. coli causes diarrhea and lacks fimbriae, ST and LT toxins, but utilizes an adhesin known as intimin to bind host intestinal cells?
Which statement about Escherichia coli is correct?
Which statement about Escherichia coli is correct?
What are the characteristics of Escherichia coli?
What are the characteristics of Escherichia coli?
At what age is the human bowel usually colonized by E. coli?
At what age is the human bowel usually colonized by E. coli?
Flashcards
Escherichia coli type
Escherichia coli type
Gram-negative rod-shaped bacteria.
Toxin-producing E. coli consequence
Toxin-producing E. coli consequence
Can cause severe diarrhea and potential fatality.
Interspecific horizontal gene transfer
Interspecific horizontal gene transfer
It aids in pathogen evolution.
Virotypes of E. coli
Virotypes of E. coli
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E. coli disease classification
E. coli disease classification
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Salmonella sp. type
Salmonella sp. type
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E. coli in hamburgers
E. coli in hamburgers
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E. coli classification
E. coli classification
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E. coli adhesion gene
E. coli adhesion gene
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E. coli pathogenicity reason
E. coli pathogenicity reason
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E. coli transmission method
E. coli transmission method
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Phenotype from plasmids
Phenotype from plasmids
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Shiga-like toxins function
Shiga-like toxins function
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E. coli attachment gene
E. coli attachment gene
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E. coli location on farms
E. coli location on farms
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E. coli dose for disease
E. coli dose for disease
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Enteric bacteria genera
Enteric bacteria genera
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Diarrhea cause in children
Diarrhea cause in children
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EIEC syndrome
EIEC syndrome
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EHEC symptoms
EHEC symptoms
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EAggEC characteristics
EAggEC characteristics
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EPEC binding method
EPEC binding method
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E. coli as an indicator
E. coli as an indicator
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Escherichia coli characteristics
Escherichia coli characteristics
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E. coli colonization age
E. coli colonization age
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Study Notes
Escherichia coli: Key Facts and Pathogenic Strains
- Escherichia coli belongs to the enteric bacteria within the gamma group of Proteobacteria
- Key genera include Escherichia, Salmonella, Proteus, Enterobacter, and Shigella
- Characteristics: gram-negative, nonsporulating rods, facultative aerobes, and most can ferment lactose
- E. coli is an indicator of fecal pollution in water supplies, swimming beaches, and foods
- The human bowel is usually colonized by E. coli within 40 hours of birth
- E. coli can cause intestinal diseases such as diarrhea
- Five classes of E. coli cause diarrheal diseases: ETEC, EIEC, EHEC, EPEC, and EAggEC
- ETEC is the leading bacterial cause of diarrhea in children in the developing world
- EIEC infection causes a syndrome identical to Shigellosis, with profuse diarrhea and high fever
- EPEC causes diarrhea and lacks fimbriae, ST and LT toxins, but utilizes an adhesin known as intimin to bind host intestinal cells
- EAggEC bind to the intestinal mucosa to cause watery diarrhea without fever
- EHEC, particularly O157:H7, causes bloody diarrhea, hemolytic-uremic syndrome, and sudden kidney failure, and produces Shiga-like toxin.
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