The ___ refers to the minimum number of microbial cells required to initiate infection in the host.

Microorganisms are termed drug resistant when they ___.

___ is the study of the determinants and distribution of all diseases in populations.

Antimicrobials that destroy most but not all normal flora allow the unaffected normal flora to grow _____.

The ___ of a microbe refers to its ability to cause infection or disease.

All of the following are vehicles of indirect transmission except:

Resident flora include bacteria, fungi, protozoa, and even viruses.

Matching the following.  Choose the best, most specific, definition.

In film radiology, what is the purpose of the itensifying screen?

why is the inside of x-ray tubes made of vaccum?