Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 32.11, Problem 1CR
Toxigenic Escherichia coli cause many food infections, and of these, STEC strains are the most severe. Contamination of foods from animal feces spreads these pathogenic strains of E. coli, but good hygiene practices and specific antibacterial measures such as irradiation or thorough cooking of ground beef, a major vehicle, can control disease outbreaks.
How does Escherichia coli O157:H7 end up in ground beef? To what class of pathogenic E. coli does this strain belong? How does this class differ from other classes?
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Viruses are considered non-living microbes, and yet they are responsible for many major disease outbreaks in humans, animals, and even plants. Consider the following:
How are these non-living microbes able to reproduce without metabolic functions?
Can viruses be exploited to help humans fight bacterial pathogens?
Which viruses are able to stay dormant in the human body and reactivate later in life or when immune defenses are compromised?
What impact might travel outside of the United States have in blood, tissue, or organ donation?
Please answer question 1, 2, 3, and 4 if possible, thank you.
Viruses are considered non-living microbes, and yet they are responsible for many major disease outbreaks in humans, animals, and even plants. Consider the following:
How are these non-living microbes able to reproduce without metabolic functions?
Can viruses be exploited to help humans fight bacterial pathogens?
Which viruses are able to stay dormant in the human body and reactivate later in life or when immune defenses are compromised?
What impact might travel outside of the United States have in blood, tissue, or organ donation?
Pathogens have a variety of traits that interact with a host and enable the pathogen to enter a host, adhere to host cells, gain access to nutrients, and escape detection or removal by the immune system. These traits are called virulence factors. The following enzymes and toxin can act as virulence factors and contribute to bacteria’s pathogenicity.
What are the specific actions of the following enzymes and toxin that make them virulence factors?
Coagulase
Kinase (such as staphylokinases and streptokinases)
Hyaluronidase
Collagenase
Cytotoxin
Chapter 32 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 32.1 - What is potable water?Ch. 32.1 - Prob. 2MQCh. 32.1 - Prob. 1CRCh. 32.2 - Why is Escherichia coli used as an indicator...Ch. 32.2 - What procedures are used to ensure the safety of...Ch. 32.2 - Prob. 1CRCh. 32.3 - What organism causes cholera, and what are the...Ch. 32.3 - Prob. 2MQCh. 32.3 - Prob. 3MQCh. 32.3 - Why are antibiotics ineffective for the treatment...
Ch. 32.4 - How is legionellosis transmitted?Ch. 32.4 - Identify specific measures for control of...Ch. 32.4 - Prob. 1CRCh. 32.5 - Contrast the causative agents of typhoid and noro...Ch. 32.5 - Prob. 2MQCh. 32.5 - Prob. 1CRCh. 32.6 - List the major food groups as categorized by their...Ch. 32.6 - Identify physical and chemical methods used for...Ch. 32.6 - List some dairy, meat, beverage, and vegetable...Ch. 32.6 - Prob. 1CRCh. 32.7 - Prob. 1MQCh. 32.7 - Describe microbial sampling procedures for solid...Ch. 32.7 - Prob. 3MQCh. 32.7 - Prob. 1CRCh. 32.8 - Identify the symptoms and mechanism of...Ch. 32.8 - Prob. 2MQCh. 32.8 - Staphylococcal food poisoning results from the...Ch. 32.9 - Prob. 1MQCh. 32.9 - Prob. 2MQCh. 32.9 - Clostridium food poisoning results from ingestion...Ch. 32.10 - Describe salmonellosis food infection. How does a...Ch. 32.10 - Prob. 2MQCh. 32.10 - Prob. 1CRCh. 32.11 - How do STEC strains of Escherichia coli differ...Ch. 32.11 - Why are meats prime vehicles for pathogenic E....Ch. 32.11 - Toxigenic Escherichia coli cause many food...Ch. 32.12 - Describe the pathology of Campylobacter food...Ch. 32.12 - Prob. 2MQCh. 32.12 - Prob. 1CRCh. 32.13 - Prob. 1MQCh. 32.13 - Prob. 2MQCh. 32.13 - Prob. 1CRCh. 32.14 - In what two forms can Bacillus cereus food...Ch. 32.14 - Compared with all other foodborne or waterborne...Ch. 32.14 - Prob. 1CRCh. 32 - As a visitor to a country in which cholera is an...Ch. 32 - Prob. 2AQCh. 32 - Prob. 3AQ
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