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

Exercise 37

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. Smokers tend to suffer from higher rates of lower respiratory tract infections. Based upon your knowledge of respiratory tract defenses, provide at least one explanation for this situation.
b. Conduct additional research and discuss how the microbiome of smokers differs from that of healthy, nonsmoking individuals and how that change may impact their health.