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

Exercise 7

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.
Smallpox has a rich history-from prompting the first vaccine to potential use as a bioterrorism agent. Given what you know about the etiology of the disease and the current state of the world's immunity to smallpox, discuss how effective (or ineffective) a smallpox biological weapon could be against a human population.