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World 7 · Vaccines, Outbreaks and Herd Immunity · 13 min · PRO

R₀ and the reproduction number

One case, how many more?

PRO · Microbe Zoo

World 7: Vaccines, Outbreaks and Herd Immunity is part of PRO

The first world of Microbe Zoo is free. PRO opens the other 27 lessons in 6 worlds — simulations, quizzes and all.

  • How vaccines train the body
  • Kinds of vaccine
  • The outbreak model
  • Herd immunity
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