Question 1

Dengue fever virus is spread via a mosquito in which part of its life cycle must take place.This makes the mosquito a/an:

Accepted Answer

A) Mechanical vector 
B) Biological vector 
C) Fomite 
D) Reservoir 
E) Symboint 
A) Mechanical vector 
B) Biological vector 
C) Fomite 
D) Reservoir 
E) Symboint

Question 2

A(n)________________ is a toxin made inside the pathogen and excreted into the external environment.

Accepted Answer

The answer of A(n)________________ is a toxin made inside the...

Question 3

This is an example of a pathogen that has become more of a threat because it is increasingly harder to control with antimicrobials.

Accepted Answer

A) MRSA 
B) E.coli O157:H7 
C) HIV/AIDS 
D) Ebola virus 
E) Measles virus 
A) MRSA 
B) E.coli O157:H7 
C) HIV/AIDS 
D) Ebola virus 
E) Measles virus

Question 4

Which of these would need to occur for a disease to be considered communicable?

Accepted Answer

A) A susceptible host encounters an infectious agent. 
B) An infectious agent colonizes a host. 
C) An infectious agent colonizes a host and can be transmitted to another host. 
D) An infectious agent causes damage to the host. 
E) An infectious agent causes damage to the host and can be transmitted to another host. 
A) A susceptible host encounters an infectious agent. 
B) An infectious agent colonizes a host. 
C) An infectious agent colonizes a host and can be transmitted to another host. 
D) An infectious agent causes damage to the host. 
E) An infectious agent causes damage to the host and can be transmitted to another host.

Question 5

The emergence of Lyme disease was most likely a result of:

Accepted Answer

A) an increase in virulence of the spirochete. 
B) a change in human activity that allowed for an increased risk for contact with the pathogen. 
C) a mutation in an existing spirochete that allowed for increase spread between humans. 
D) a rare zoonotic transfer of the spirochete strain to humans. 
E) an increase in the tick population. 
A) an increase in virulence of the spirochete. 
B) a change in human activity that allowed for an increased risk for contact with the pathogen. 
C) a mutation in an existing spirochete that allowed for increase spread between humans. 
D) a rare zoonotic transfer of the spirochete strain to humans. 
E) an increase in the tick population.

Question 6

Which of these factors does NOT complicate the application of Koch's postulates?

Accepted Answer

A) Host cell receptor variability 
B) Diseases with clearcut syndromes (collections of associated signs and symptoms) 
C) Pathogen strain variability 
D) Obligate intracellular metabolism of some pathogens 
E) All are equally confounding 
A) Host cell receptor variability 
B) Diseases with clearcut syndromes (collections of associated signs and symptoms) 
C) Pathogen strain variability 
D) Obligate intracellular metabolism of some pathogens 
E) All are equally confounding

Question 7

Examine Table 18.1 in the text.Which symptom or sign would be LEAST definitive in diagnosing one of the diseases listed?

Accepted Answer

A) anemia 
B) Fever 
C) Decreased CD4+ cell count 
D) diarrhea 
E) All are equally diagnostically significant 
A) anemia 
B) Fever 
C) Decreased CD4+ cell count 
D) diarrhea 
E) All are equally diagnostically significant

Question 8

Term for newly identified infectious diseases or those with a recent significant increase in incidence.

Accepted Answer

A) emerging diseases 
B) new diseases 
C) modern diseases 
D) future diseases 
E) special diseases 
A) emerging diseases 
B) new diseases 
C) modern diseases 
D) future diseases 
E) special diseases

Dengue fever virus is spread via a mosquito in which part of its life cycle must take place.This makes the mosquito a/an:

A(n)________________ is a toxin made inside the pathogen and excreted into the external environment.

This is an example of a pathogen that has become more of a threat because it is increasingly harder to control with antimicrobials.

Which of these would need to occur for a disease to be considered communicable?

The emergence of Lyme disease was most likely a result of:

Which of these factors does NOT complicate the application of Koch's postulates?

Examine Table 18.1 in the text.Which symptom or sign would be LEAST definitive in diagnosing one of the diseases listed?

Term for newly identified infectious diseases or those with a recent significant increase in incidence.

The Microbial World

Bacteria

Eukaryal Microbes

Archaea

Viruses

Cultivating Microorganisms

DNA Replication and Gene Expression

Viral Replication Strategies

Bacterial Genetic Analysis

Microbial Genomics

Regulation of Gene Expression

Microbial Biotechnology

Metabolism

Biogeochemical Cycles

Microbial Ecosystems

The Microbiology of Food and Water

Microbial Symbionts

Innate Host Defenses Against Microbial Invasion

Adaptive Immunity

Virulence Factors and Pathogenic Mechanisms of Bacterial Infections

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

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Exam 18: Introduction to Infectious Diseases

Dengue fever virus is spread via a mosquito in which part of its life cycle must take place.This makes the mosquito a/an:

A(n)________________ is a toxin made inside the pathogen and excreted into the external environment.

This is an example of a pathogen that has become more of a threat because it is increasingly harder to control with antimicrobials.

Which of these would need to occur for a disease to be considered communicable?

The emergence of Lyme disease was most likely a result of:

Which of these factors does NOT complicate the application of Koch's postulates?

Examine Table 18.1 in the text.Which symptom or sign would be LEAST definitive in diagnosing one of the diseases listed?

Term for newly identified infectious diseases or those with a recent significant increase in incidence.

The Microbial World

Bacteria

Eukaryal Microbes

Archaea

Viruses

Cultivating Microorganisms

DNA Replication and Gene Expression

Viral Replication Strategies

Bacterial Genetic Analysis

Microbial Genomics

Regulation of Gene Expression

Microbial Biotechnology

Metabolism

Biogeochemical Cycles

Microbial Ecosystems

The Microbiology of Food and Water

Microbial Symbionts

Innate Host Defenses Against Microbial Invasion

Adaptive Immunity

Virulence Factors and Pathogenic Mechanisms of Bacterial Infections

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

Filters