Which of the following is a sudden, violent, involuntary contraction of one or more muscles? 

The transfer of microbes to an item or tissue by direct physical contact with the microbes.

Which of the following parasites transmitted to humans from a cat litter and spreads through the blood supply including the retina of the eye? 

Methods or practices in health care that reduce or prevent the spread of infection.

In surgery, a barrier that separates a sterile surface from a nonsterile surface. Examples are sterile surgical gloves, gowns, and drapes. A _______, such as a clean surgical cap, prevents a bacteria-laden surface, such as the hair, from shedding microorganisms.

Organisms that favor an environment with oxygen. Strict types of these microbes cannot live without oxygen

Infection only occurs in a weakened individual. The host may be debilitated by another disease or their immune system may be compromised.

A technique of gloving in which the bare hands do not come in contact with the outside of the glove. The sterile glove is protected from the nonsterile hand by the cuff of a surgical gown.

A state in which an inanimate surface harbors absolutely no viable microorganisms.

The degree to which a microorganism is capable of causing disease.