BackYoung Luis has skin lesions. His mother knows from microbiology class that five childhood diseases can produce spots. Name those five diseases and the viruses that cause each. List some questions to ask to determine which of these viruses Luis has.
Of the following characteristics, which would contribute most to making a microorganism an effective biological warfare agent?
a. Is readily available in the environment
b. Can be spread by contact after original dissemination
c. Cannot be treated well outside a hospital
d. Is easily identified by symptoms
The most frequent portal of entry for pathogens is:
a. The respiratory tract
b. The skin
c. The conjunctiva
d. A cut or wound
The process by which microorganisms attach themselves to cells is :
a. Infection
b. Contamination
c. Disease
d. Adhesion
Which of the following are most likely to cause disease?
a. Opportunistic pathogens in a weakened host
b. Pathogens lacking the enzyme kinase
c. Pathogens lacking the enzyme collagenase
d. Highly virulent organisms
When pathogenic bacterial cells lose the ability to make adhesins, they typically .
a. Become avirulent
b. Produce endotoxin
c. Absorb endotoxin
d. Increase in virulence
What does the term HAI (nosocomial infection) have to do with patient care?
A disease in which a pathogen remains inactive for a long period of time before becoming active is termed a(n) :
a. Subacute disease
b. Acute disease
c. Chronic disease
d. Latent disease
Which of the following statements is the best definition of a pandemic disease?
a. It normally occurs in a given geographic area.
b, It is a disease that occurs more frequently than usual for a geographical area or group of people.
c. It occurs infrequently at no predictable time scattered over a large area or population.
d. It is an epidemic that occurs on more than one continent at the same time.
Which of the following types of epidemiologists is most like a detective?
a. Descriptive epidemiologist
b. Analytical epidemiologist
c. Experimental epidemiologist
d. Reservoir epidemiologist
Consider the following case. An animal was infected with a virus. A mosquito bit the animal, was contaminated with the virus, and proceeded to bite and infect a person. Which was the vector?
a. Animal
b. Virus
c. Mosquito
d. Person
Which of the following phrases describes a contagious disease?
a. A disease arising from fomites
b. A disease that is easily passed from host to host in aerosols
c. A disease that arises from opportunistic members of the resident microbiome
d. Both a and b
A microbe that causes disease is called a __________ .
Contrast the terms infection and morbidity.
A bacterium associated with bacteremia, meningitis, and pneumonia in newborns is
a. Staphylococcus aureus
b. Staphylococcus epidermidis
c. Streptococcus pyogenes
d. Streptococcus agalactiae