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
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 25.3, Problem 1CR
Summary Introduction
The ability of the pathogen to cause an infectious disease is measured in terms of pathogenicity and virulence. The cumulative effect of interaction of the pathogen with host which helps to measure the pathogenicity is termed as virulence. Virulence would be different for different microorganisms and will vary from one strain to another strain. Virulence can be quantified in terms of LD50 by the presence of lethal pathogen and a suitable animal model.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
discuss vacination programmes for salmonella
a. What is the importance of NTM?b. Describe the effects of Mycobacterium avium complex in AIDSpatients.
Q How is Neisseria meningitides typically transmittedand what are the symptoms of full-blown meningitiscaused by this bacterium?
Chapter 25 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 25.1 - What event is required but not sufficient to cause...Ch. 25.1 - Prob. 2MQCh. 25.1 - Prob. 1CRCh. 25.2 - Prob. 1MQCh. 25.2 - Prob. 2MQCh. 25.2 - Prob. 3MQCh. 25.2 - Prob. 1CRCh. 25.3 - What are virulence factors? How can the LD50 test...Ch. 25.3 - Prob. 2MQCh. 25.3 - Prob. 1CR
Ch. 25.4 - Prob. 1MQCh. 25.4 - Prob. 2MQCh. 25.4 - Prob. 3MQCh. 25.4 - Prob. 1CRCh. 25.5 - Prob. 1MQCh. 25.5 - Prob. 2MQCh. 25.5 - Prob. 3MQCh. 25.5 - Prob. 1CRCh. 25.6 - What key features are shared by all AB exotoxins?Ch. 25.6 - Prob. 2MQCh. 25.6 - Prob. 3MQCh. 25.6 - Prob. 1CRCh. 25.7 - Prob. 1MQCh. 25.7 - Prob. 2MQCh. 25.7 - QDistinguish between the mechanism of cytotoxins...Ch. 25.8 - What part of the Escherichia coli cell contains...Ch. 25.8 - Why is it necessary to test for endotoxin in water...Ch. 25.8 - Prob. 1CRCh. 25 - Coagulase is a virulence factor for Staphylococcus...Ch. 25 - Although mutants incapable of producing exotoxins...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What virulence factor, present in Streptococcuspneumoniae but absent from Salmonella enterica, makesS. pneumoniae so highly virulent for mice?arrow_forward1. Give the active substance and activity/indication (e.g. antibacterial, anti-inflammatory) of kalabasa or Cucurbita moschata?arrow_forwardWhat are the virulence factors of Salmonella typhi? Explain each factors in simple terms.arrow_forward
- a. Why is listeriosis a serious problem even with refrigerated foods?b. Which groups are most at risk for serious complications?arrow_forward1. What is the active substance and activity/indications (e.g. antibacterial, anti-inflammatory) of okra or Abelmoschus esculentus?arrow_forwardQ#2: Write note on the life cycle and diagnosis of Enterobius vermicularis ?arrow_forward
- State the significance of E. coli O157:H7.arrow_forwardApproximately 50% of the world’s population is colonised by Helicobacter pylori (H. pylori), yet only a fraction of the population develops gastric ulcers. A. Why is there a discrepancy between the frequency of H. pylori colonization and the frequency of gastric ulceration? Is H. pylori colonization responsible for gastric ulcers? B. Should a vaccine against H. pylori be developed and administered for everyone? Justify your reasoning.arrow_forwarda) Explain how resident mouth microbiota are responsible for the formation of dental caries. b)Are all members of resident mouth microbiota capable of initiating dental caries?arrow_forward
- What do they mean when they ask for a population focused intervention in a case study of a homeless man with type 2 diabetes who is experiencing ketoacidosis triggered by cellulitis?arrow_forward13 The H. pylori bacterium that is associated with ulcer formation is found in _____. Select one: a. 100% of people with gastric ulcers b. 75% of people who do not have gastric ulcers c. 50% of people with gastric ulcers d. 25% of people who do not have gastric ulcersarrow_forwardVaccine against Streptococcus Pneumoniae can reduce incidence of?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you