When bacteria establish themselves in or on a host without causing an infection, this is known as
A) colonization.
B) infestation.
C) foundation.
D) globalization.
Question 2
A key reason for the resurgence of measles and mumps infections is
A) an increased mosquito population.
B) a public backlash against vaccinations.
C) the rise of the HIV/AIDS epidemic.
D) poor sanitation and hygiene in certain areas.