MICROBIOLOGY EXAM 3 PRACTICE QUESTIONS
MCGRAW HILL QUESTIONS WITH CORRECT
ANSWERS 2025/2026
The natural habitat of a pathogen is referred to as its
A) home
B) reservoir
C) primary inhabitance
D) infectious site
E) place - CORRECT ANSWER -resevoir
The number of people in a defined population who die during a given period is called the
A) mortality rate
B) morbidity rate
C) attack rate
D) incidence rate
E) case rate - CORRECT ANSWER -mortality rate
Diseases constantly present in a population are called
A) epidemic
B) chronic
C) latent
D) endemic
E) prodromic - CORRECT ANSWER -endemic
Which of the following is not a vector?
A) door knob
, B) Tick
C) Fly
D) Flea
E) Mosquito - CORRECT ANSWER -door knob
A 56-year-old man sees his primary health care physician with the following signs and
symptoms: muscle aches, headache, fever, cough, shortness of breath, chest and abdominal
pain, and discloses that he also has had mild diarrhea. The physician diagnoses the man with
having bacterial pneumonia and prescribes amoxicillin. Though the man showed signs of
improvement, 10 days later he is back now with even more severe symptoms and what appears,
by chest x-ray, to be lobar pneumonia. Further history reveals that the man is a plumber and
recently completed a job where he and a team rebuilt a faulty air conditioning system in an
older high-rise office building. After a brief consultation with experts at the CDC, the physician
tells the man that he believe he has:
A) Legionnaires' Disease
B) Tuberculosis
C) Diphtheria
D) Pneumococcal pneumonia
E) cannot be diagnosed from the data provided - CORRECT ANSWER -legionaires' disease
Disease(s) in which the causative agent becomes latent is/are
A) cold sores AND influenza
B) genital herpes AND pneumonia
C) chickenpox AND influenza
D) shingles, genital herpes, AND cold sores
E) shingles, genital herpes, AND common colds. - CORRECT ANSWER -shingles, genital herpes,
and cold sores
An AB type exotoxin
MCGRAW HILL QUESTIONS WITH CORRECT
ANSWERS 2025/2026
The natural habitat of a pathogen is referred to as its
A) home
B) reservoir
C) primary inhabitance
D) infectious site
E) place - CORRECT ANSWER -resevoir
The number of people in a defined population who die during a given period is called the
A) mortality rate
B) morbidity rate
C) attack rate
D) incidence rate
E) case rate - CORRECT ANSWER -mortality rate
Diseases constantly present in a population are called
A) epidemic
B) chronic
C) latent
D) endemic
E) prodromic - CORRECT ANSWER -endemic
Which of the following is not a vector?
A) door knob
, B) Tick
C) Fly
D) Flea
E) Mosquito - CORRECT ANSWER -door knob
A 56-year-old man sees his primary health care physician with the following signs and
symptoms: muscle aches, headache, fever, cough, shortness of breath, chest and abdominal
pain, and discloses that he also has had mild diarrhea. The physician diagnoses the man with
having bacterial pneumonia and prescribes amoxicillin. Though the man showed signs of
improvement, 10 days later he is back now with even more severe symptoms and what appears,
by chest x-ray, to be lobar pneumonia. Further history reveals that the man is a plumber and
recently completed a job where he and a team rebuilt a faulty air conditioning system in an
older high-rise office building. After a brief consultation with experts at the CDC, the physician
tells the man that he believe he has:
A) Legionnaires' Disease
B) Tuberculosis
C) Diphtheria
D) Pneumococcal pneumonia
E) cannot be diagnosed from the data provided - CORRECT ANSWER -legionaires' disease
Disease(s) in which the causative agent becomes latent is/are
A) cold sores AND influenza
B) genital herpes AND pneumonia
C) chickenpox AND influenza
D) shingles, genital herpes, AND cold sores
E) shingles, genital herpes, AND common colds. - CORRECT ANSWER -shingles, genital herpes,
and cold sores
An AB type exotoxin
