Question 1

When an infected person is in the incubation period, that person cannot transmit the pathogen to others.

Accepted Answer

A) True 
 B)False

Question 2

Microbial hyaluronidase, coagulase, and streptokinase are examples of _____.

Accepted Answer

A)  adhesive factors
B)  exotoxins
C)  hemolysins
D)  antiphagocytic factors
E)  exoenzymes

Question 3

Your patient has a rash, a fever, and a very high white blood cell count.Blood specimens are taken, put into culture bottles, and sent down to the microbiology lab for incubation and analysis.Select the statement that best reflects why microbial analysis of blood is an important step in patient diagnosis.

Accepted Answer

A)  Microbial growth in blood samples may indicate sepsis.
B)  A few bacterial cells in a blood sample are no big deal and should be ignored. 
C)   Blood specimens are often obtained through poor aseptic technique by the healthcare worker: this is documentation of their failure to employ proper universal precautions.
D)  A lack of microbes in the blood means that the patient's health is critical.

Question 4

Since the 1970s, approximately 40 new infectious disease agents have been discovered, including SARS, chikungunya and zika.The ability of these agents to spread rapidly and cause global concern is due to all of the following except

Accepted Answer

A)  individuals are traveling more frequently and farther distances than in the previous half-century.
B)  communities are becoming more sparsely populated.
C)  communities are spreading into rural areas/wildlife habitats.
D)  communities are becoming more densely populated.

Question 5

TORCH is an acronym that represents the most common ______.

Accepted Answer

A)  genera of resident biota
B)  sexually transmitted infections
C)  portals of entry
D)  vectors
E)  infections of the fetus and neonate

Question 6

Hyaluronidase is a virulence factor in ______.

Accepted Answer

A)  amoebic dysentery
B)  ringworm
C)  clostridia
D)  cold virus
E)  diphtheria

Question 7

Which genus is the most common resident biota of mouth surfaces?

Accepted Answer

A)  Lactobacillus
B)  Streptococcus
C)  Haemophilus
D)  Escherichia
E)  Mycobacterium

Question 8

The principal government agency responsible for tracking infectious diseases in the United States is the

Accepted Answer

A)  Centers for Disease Control and Prevention.
B)  World Health Organization.
C)  National Institutes of Health.
D)  United States Department of Agriculture.
E)  Infection Control Committee.

Question 9

An infectious agent already existing on or in the body is called ______.

Accepted Answer

A)  exogenous
B)  an exotoxin
C)  an enterotoxin
D)  endogenous
E)  axenic

Question 10

Each of the following is inoculation of normal biota to a newborn except

Accepted Answer

A)  the birth process through the birth canal.
B)  bottle feeding.
C)  breast feeding.
D)  contact with hospital staff.
E)  All of the choices are correct.

Question 11

An intermediary inanimate object from which an infectious agent is acquired is termed a ______.

Accepted Answer

A)  fomite
B)  carrier
C)  vector
D)  reservoir

Question 12

Mucinase has the greatest effect on the ______.

Accepted Answer

A)  respiratory system
B)  gastrointestinal system
C)  urinary system
D)  genital system
E)  skin

Question 13

Which of the following is transmission of disease from mother to fetus?

Accepted Answer

A)  Vertical
B)  Direct
C)  Vector
D)  Droplets
E)  Fomites

Question 14

For a successful emergence or re-emergence to occur, a pathogen must be introduced into a vulnerable population and have the ability to spread readily from person-to-person causing disease.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is the endotoxin?

Accepted Answer

A)  Hemolysin
B)  Hyaluronidase
C)  Streptokinase
D)  Collagenase
E)  Lipopolysaccharide

Question 16

Which of the following is a direct contact method of microbe transmission?

Accepted Answer

A)  Fomites
B)  Water
C)  Droplet nuclei
D)  Aerosols
E)  Droplets

Question 17

The greatest number of pathogens enter the body through the ______.

Accepted Answer

A)  respiratory system
B)  gastrointestinal system
C)  urinary system
D)  genital system
E)  skin

Question 18

Which of the following is not a factor that weakens host defenses against infections?

Accepted Answer

A)  Genetic defects in immunity
B)  Physical and mental stress
C)  Strong, healthy body
D)  Chemotherapy
E)  Old age

Question 19

The virulence factors of a pathogen are determined by how strong or weak a patient's body defenses are at the time of infection.

Accepted Answer

A) True 
 B)False

Question 20

The effect of beneficial microbes of normal biota against invading microbes is called ______.

Accepted Answer

A)  microbial antagonism
B)  endogenous infection
C)  infectious disease
D)  axenic
E)  gnotobiotism

Exam 13: Microbe-Human Interactions: Health and Disease

Which of the following is the endotoxin?

Correct Answer
verified

The effect of beneficial microbes of normal biota against invading microbes is called ______.

Correct Answer
verified

Which of the following is transmission of disease from mother to fetus?

Correct Answer
verified

Hyaluronidase is a virulence factor in ______.

Correct Answer
verified

The greatest number of pathogens enter the body through the ______.

Correct Answer
verified

Since the 1970s, approximately 40 new infectious disease agents have been discovered, including SARS, chikungunya and zika.The ability of these agents to spread rapidly and cause global concern is due to all of the following except

Correct Answer
verified

Correct Answer
verified

An intermediary inanimate object from which an infectious agent is acquired is termed a ______.

Correct Answer
verified

When an infected person is in the incubation period, that person cannot transmit the pathogen to others.

Correct Answer
verified

Mucinase has the greatest effect on the ______.

Correct Answer
verified

TORCH is an acronym that represents the most common ______.

Correct Answer
verified

Microbial hyaluronidase, coagulase, and streptokinase are examples of _____.

Correct Answer
verified

Which of the following is a direct contact method of microbe transmission?

Correct Answer
verified

Which genus is the most common resident biota of mouth surfaces?

Correct Answer
verified

The principal government agency responsible for tracking infectious diseases in the United States is the

Correct Answer
verified

The virulence factors of a pathogen are determined by how strong or weak a patient's body defenses are at the time of infection.

Correct Answer
verified

Which of the following is not a factor that weakens host defenses against infections?

Correct Answer
verified

An infectious agent already existing on or in the body is called ______.

Correct Answer
verified

Each of the following is inoculation of normal biota to a newborn except

Correct Answer
verified

For a successful emergence or re-emergence to occur, a pathogen must be introduced into a vulnerable population and have the ability to spread readily from person-to-person causing disease.

Correct Answer
verified

Exam 13: Microbe-Human Interactions: Health and Disease

Which of the following is the endotoxin?

Correct AnswerverifiedShow Answer

The effect of beneficial microbes of normal biota against invading microbes is called ______.

Correct AnswerverifiedShow Answer

Which of the following is transmission of disease from mother to fetus?

Correct AnswerverifiedShow Answer

Hyaluronidase is a virulence factor in ______.

Correct AnswerverifiedShow Answer

The greatest number of pathogens enter the body through the ______.

Correct AnswerverifiedShow Answer

Since the 1970s, approximately 40 new infectious disease agents have been discovered, including SARS, chikungunya and zika.The ability of these agents to spread rapidly and cause global concern is due to all of the following except

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

An intermediary inanimate object from which an infectious agent is acquired is termed a ______.

Correct AnswerverifiedShow Answer

When an infected person is in the incubation period, that person cannot transmit the pathogen to others.

Correct AnswerverifiedShow Answer

Mucinase has the greatest effect on the ______.

Correct AnswerverifiedShow Answer

TORCH is an acronym that represents the most common ______.

Correct AnswerverifiedShow Answer

Microbial hyaluronidase, coagulase, and streptokinase are examples of _____.

Correct AnswerverifiedShow Answer

Which of the following is a direct contact method of microbe transmission?

Correct AnswerverifiedShow Answer

Which genus is the most common resident biota of mouth surfaces?

Correct AnswerverifiedShow Answer

The principal government agency responsible for tracking infectious diseases in the United States is the

Correct AnswerverifiedShow Answer

The virulence factors of a pathogen are determined by how strong or weak a patient's body defenses are at the time of infection.

Correct AnswerverifiedShow Answer

Which of the following is not a factor that weakens host defenses against infections?

Correct AnswerverifiedShow Answer

An infectious agent already existing on or in the body is called ______.

Correct AnswerverifiedShow Answer

Each of the following is inoculation of normal biota to a newborn except

Correct AnswerverifiedShow Answer

For a successful emergence or re-emergence to occur, a pathogen must be introduced into a vulnerable population and have the ability to spread readily from person-to-person causing disease.

Correct AnswerverifiedShow Answer

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