Exam 22: An Introduction to Microbiology and Human Disease

Sources of infection for people are, in general, called ____________________.

A(n) ____________________ disease is one that is present in a population, with a certain number of cases expected.

An inapparent infection is one in which the person has no:

Which of the following statements are true of vectors and the diseases they spread? (Read carefully and select all of the correct statements.)

The body systems lined with mucous membranes are the digestive, respiratory, reproductive, and _________________________.

Bacteria that cannot reproduce in the presence of oxygen are called:

Drinking water is often ____ to make it safe to drink.

The colon flora are beneficial to us because they produce ____________________.

A disease such as salmonella, which is acquired from contaminated food, is called:

A chemical that is used to destroy bacteria on the skin is called a(n) ____________________.

The presence of bacteria in the blood is called ____________________.

The process of chlorination is used to destroy microorganisms in ____________________.

Spherical bacteria that grow in clusters are called ____________________.

Fomites are ____________________ that may be sources of pathogens.

Bacteria that might normally be killed by heat may survive if they are able to form:

The presence of bacteria in the blood is called:

A person cannot acquire the West Nile virus (WNV) directly from an infected person; therefore WNV in not considered ____________________.

A microorganism that is usually harmless but may become pathogenic in certain circumstance is called a(n) ____________________.

A disease that people acquire from animals is called a ____________________.

An acute infection is one that ____________________.