Foundations in Microbiology 9th Edition by Kathleen Park Talaro, Barry Chess

Exercise 3

Compose a one- or two-paragraph answer that includes the factual information needed to completely address the question. Check Your Progress questions can also be used for writing-challenge exercises.
Drugs are often given to surgical patients, to dental patients with heart disease, or to healthy family members exposed to contagious infections.
a. What word would you use to describe this use of drugs?
b. What is the purpose of this form of treatment?
c. Explain some potential undesired effects of this form of therapy.
d. Define probiotics and give some ways they are used.