PRESCOTT'S MICROBILOGY
11th Edition
ISBN: 9781264075515
Author: WILLEY
Publisher: MCG
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Chapter 35.2, Problem 4CC
Summary Introduction
In the vectors borne disease transmission, the microbes need a carrier to spread infections. The vectors act as a carrier in transmitting the infection from the infected individual to healthy individual or directly transmit disease to the healthy individual. For example, mosquito, ticks, bats, and dogs.
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Chapter 35 Solutions
PRESCOTT'S MICROBILOGY
Ch. 35.1 - MICRO INQUIRY During which stages does the host...Ch. 35.1 - Define infection, infectious disease,...Ch. 35.1 - Prob. 2CCCh. 35.1 - What are some important characteristics of a...Ch. 35.1 - What is an obligate intracellular pathogen? How...Ch. 35.1 - Prob. 5CCCh. 35.1 - Prob. 6CCCh. 35.2 - Prob. 1CCCh. 35.2 - Prob. 2CCCh. 35.2 - Define droplet nuclei, vehicle, fomite, and...
Ch. 35.2 - Prob. 4CCCh. 35.2 - Prob. 5CCCh. 35.2 - Prob. 6CCCh. 35.3 - Prob. 1CCCh. 35.3 - Prob. 2CCCh. 35.3 - Prob. 3CCCh. 35.3 - Prob. 4CCCh. 35.4 - What are virulence factors?Ch. 35.4 - What are pathogenicity islands and why are they...Ch. 35.4 - Prob. 3CCCh. 35.4 - Prob. 4CCCh. 35 - Prob. 1RCCh. 35 - Prob. 2RCCh. 35 - Prob. 3RCCh. 35 - Prob. 1ALCh. 35 - Prob. 2ALCh. 35 - Prob. 3ALCh. 35 - Prob. 4ALCh. 35 - Prob. 5ALCh. 35 - Prob. 6AL
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- Which of the following virulence factors among A-D is correctly matched with its definition or characterization? A) O Invasins: pathogen proteins that prevent opsonization of the pathogen B) O Phase variation: allows pathogen to switch between different forms of an extracellular antigen (e.g., flagellum) C) O Protein A. a microbial factor that allows for attachment, typically a surface protein or surface glycoprotein D) O Prevention of lysosome:phagosome fusion mechanism employed by an extracellular pathogen E) OM protein, Opa protein: enzymes that interfere with the functioning of antibodiesarrow_forwardWhich of the following best explains why vaccination of humans against rabies can be delayed until after exposure to a potential source of infection? A) Antibody responses are more rapid than those against other viruses B) T lymphocyte responses are more rapid than those against other viruses C) The virus does not infect any cells for several weeks or months D) The virus does not reach i target organ for several weeks or monthsarrow_forwardWhat role do virulence factors play in the four phases of infection? Describe the infection stage and any virulence factors connected with it.arrow_forward
- What are the genetic and molecular features that differ between pathogens and members of the normal human microbiota?arrow_forwardWhich of the following diseases is NOT controlled by a mosquito control program? Group of answer choices A) Yellow fever B) Dengue fever C) Leprosy D) Malariaarrow_forwardWhy are some pathogens more noticeable than others?arrow_forward
- Humans are accidental hosts in many vector-borne diseases. Whatdoes this indicate about the relationship between the vector and themicrobial agent?arrow_forwardWhich of the following statements about noroviruses is false?a) They are the most common cause of viral gastroenteritis in the United States.b) They have a low infectious dose.c) They generally cause vomiting lasting 1 to 2 weeks.d) Immunity does not last long.e) They are a category B bioterrorism agent.arrow_forwardWhich of the following is a reason that specific pathogens tend to infect specific tissues? Most tissues are resistant to microbial exotoxins There are chemical and physical differences between tissues. Microbes preferentially target external tissues, such as skin, as the environment is more favorable for their growth than inside the body. Tissues with neutral pH are colonized but those with acidic or alkaline pH are not.arrow_forward
- 14) When considering virulence factors, which class of virulence factor would be most likely to increase the severity of disease caused by the pathogen possessing the virulence factor, due to this class of virulence factor most likely causing the death of cells? A) extracellular enzymes C) anti-phagocytic factors B) toxins D) adherence factors 15) Which of the following classes of virulence factor is absolutely needed for nearly every infection? In fact, if the organism lacks this factor, it is most likely going to be avirulent (not disease-causing). A) extracellular enzyme B) adherence factor D) anti-phagocytic factor C) exotoxin 16) Which of the following is an iron-binding protein produced by pathogens to access the body's store of iron? A) ferritin B) siderophores C) hemolysin D) transferrin 17) The complement cascade and its by-products contribute to A) attracting phagocytes to sites of infection. B) triggering release of interferons. C) triggering inflammation. D) triggering…arrow_forwardWhich of your body’s nonspecific host defenses would help fight a pathogen entering your body through each of the following portals? (a) A small cut on your hand; (b) inhalation into your lungs; (c) ingestion with contaminated food.arrow_forwardWhich term would best describe the occurrence of a disease that is not normally seen, yet occasionally a case will occur, such as tetanus? 1) endemic O 2) sporadic 3) epidemic O 4) pandemicarrow_forward
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