ost of the Wiki page topics, Ch. 8 Ch. 8 — Infection and Defects in Mechanisms of Defense 1. Describe the factors influencing infection by a pathogen — infectivity, virulence, pathogenicity, etc. 2. Define and differentiate antigenic drift from antigenic shift. 3. Compare bacterial, viral, and fungal infections, including manifestations. 4. Explain how live, attenuated, […]