The ________ collects data and conducts epidemiologic studies in the United States.

________occurs when an infected individual passes the infection on to other individuals, who pass it on to still others, increasing the penetration of the infection into the susceptible population.

A batch of food contaminated with botulism exotoxin, consumed at a family reunion by most of the members of a family, would be an example of a ________ outbreak.

A patient in the hospital with a urinary catheter develops a bladder infection. This is an example of a(n) ________ infection.

A ________ is an animal that can transfer infectious pathogens from one host to another.

The ________ collects data and conducts epidemiologic studies at the global level.