14. The type of infection in which several infectious agents establish themselves at the same site is referred to as a
a. chronic infection.
b. necrotizing infection.
c. fatal infection.
d. mixed infection.

15. Healthcare–associated infections are also known as
a. incidental infections.
b. accidental infections.
c. nosocomial infections.
d. secondary infections.

16. The number of new cases of a disease over a certain period of time compared with the general healthy population is a referred to as
a. incidence.
b. prevalence.
c. virulence.
d. mortality.