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 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 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 __________ .