Microbiology: A Systems Approach 4th Edition by Marjorie Kelly Cowan

Exercise 42

Critical thinking is the ability to reason and solve problems using facts and concepts. These questions can be approached from a number of angles and, in most cases, they do not have a single correct answer.
a. Provide at least three examples of noncellular infectious agents that do not display typical viral morphology.
b. Of these examples, explain which are associated with the development of human disease.