Why should we care about infectious disease?
Seasonal flu. H1N1. Smallpox. What makes a disease infectious? Why do some people get sick and not others? Could an epidemic happen here? These questions and more are explored in Unit 1.
Lesson 3: Bacterial structures (pdf)
Lesson 4: Viral sizes and structures (pdf)
Do Online: Unit 1 Multimedia
Infectious Disease Blog: Unit 1 Further Reading