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Infectious Diseases Unit 4 Lesson 5 plan

Infectious Diseases Unit 4 Lesson 5 plan. Do now. Brainstorm: The 1918 flu appeared suddenly and killed millions of people. Where does a virus like this come from? . Antigenic drift and Antigenic shift . Antigenic drift and Antigenic shift . Only some viruses can do this because

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Infectious Diseases Unit 4 Lesson 5 plan

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  1. Infectious Diseases • Unit 4 Lesson 5 plan

  2. Do now • Brainstorm: • The 1918 flu appeared suddenly and killed millions of people. Where does a virus like this come from?

  3. Antigenic drift and Antigenic shift

  4. Antigenic drift and Antigenic shift Only some viruses can do this because It requires a segmented genome!

  5. Non-Segmented Genomes Virus B Virus A Host cell

  6. Segmented Genomes Virus B Virus A Host cell

  7. H = hemagglutinin (surface protein used to attach and enter host cell) N = neuraminidase (surface protein used to exit host cell) Examples: H1N1: infects cells of upper respiratory tract; less virulent but easily spread H5N1: infects cells of lower respiratory tract; more virulent but not easily spread

  8. Shift and Drift Demonstration

  9. Antigenic shift

  10. Wrap up • Complete your worksheet and hand it in.

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