slide1
Download
Skip this Video
Download Presentation
Infectious Diseases Unit 4 Lesson 5 plan

Loading in 2 Seconds...

play fullscreen
1 / 10

Infectious Diseases Unit 4 Lesson 5 plan - PowerPoint PPT Presentation


  • 118 Views
  • Uploaded on

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

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Infectious Diseases Unit 4 Lesson 5 plan' - daire


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Infectious Diseases

  • Unit 4 Lesson 5 plan
slide2

Do now

  • Brainstorm:
    • The 1918 flu appeared suddenly and killed millions of people. Where does a virus like this come from?
slide4

Antigenic drift and Antigenic shift

Only some viruses can do this because

It requires a segmented genome!

slide5

Non-Segmented Genomes

Virus B

Virus A

Host cell

slide6

Segmented Genomes

Virus B

Virus A

Host cell

slide7

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

slide10

Wrap up

  • Complete your worksheet and hand it in.
ad