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Vaccine Epidemiology, Part Two: Some Basic Concepts
This is the second part of a series of explainers looking at what vaccines have done to and for human populations since their invention in the late 1700's. (Click here for part one.) In this second part, we talk about a few simple concepts that are necessary to understand how vaccines work. We review virology, bacteriology, immunology, chemistry, toxicology and the basic reproduction number. It's about 20 minutes.