When does a microbe become pathogenic?
What is the difference between a pathogen and a microbe? As we’ll explore in this unit, most microbes can be pathogenic if they are in the right location. There are also adaptations that allow certain microbes to bypass host defenses and become extremely pathogenic.
Lesson 1: The zoo in you — our microbial ecosystem and Ebola (pdf)
Do Online: Unit 3 Multimedia
Infectious Disease Blog: Unit 3 Further Reading