1. Introduction to Viruses DQ’s
What do we already know about viruses?
Why are viruses dangerous?
What is a virus made of?

2. Life Science: Viruses DQ’s
What is a virus, and how does it reproduce?
How does the body fight a virus? What are antibodies?
What was Edward Jenner’s discovery, and how did it lead to the development of vaccines?
How does a vaccine work?
Who invented the polio vaccine—the first vaccine that didn’t make people sick?
How can new viruses emerge?
What viral disease affects one in 100 people between the ages of 15 and 49 and is especially prevalent in Africa?
What is one way new viruses are being monitored and controlled?

3. How do viruses make more viruses?
Not like bacteria or protists.

4. How do viruses make more viruses?
Not like animals & plants who reproduce sexually by exchanging genetic info.
Not like bacteria or protists.
These microbes mostly divide and split asexually (fission) to make perfect clones .

5. How do viruses make more viruses?
Not by sexual or asexual reproduction.

6. Remember, viruses are really tiny.
Compare them to our other microbes.

7. Remember, viruses are really tiny. And viruses are very simple critters.
The virus is basically its genetic material (its “DNA”) surrounded by a protein coating.

8. Viruses can lie dormant for years.
Like a volcano.

9. Viruses can lie dormant for years.
Like insects?

10. But if you or any other living thing touches a virus…it injects its genetic material into your cell!
Its may be you, a bacterium, a protist, tree or another human!

11. But if you or any other living thing touches a virus…it injects its genetic material into your cell!
Be you a bacteria, protist, tree or human!

12. And instead of your cell doing what it is supposed to do…
like help you breathe if a lung cell.

13. And instead of your cell doing what it is supposed to do…
like help you breathe if a lung cell.
like help you move if a muscle cell.

14. And instead of your cell doing what it is supposed to do…
like help you breathe if a lung cell.
like help you move if a muscle cell.
like help you feel if a nerve cell.

15. And instead of your cell doing what it is supposed to do…
YOUR CELL IS REPROGRAMMED TO BECOME A VIRUS MAKING MACHINE!

16. And instead of your cell doing what it is supposed to do…
YOUR CELL IS REPROGRAMMED TO BECOME A VIRUS MAKING MACHINE!
This “host” cell eventually fills up with little viruses until the cell pops and out comes more viruses ready for infection!

17. And instead of your cell doing what it is supposed to do…
YOUR CELL IS REPROGRAMMED TO BECOME A VIRUS MAKING MACHINE!
This “host” cell eventually fills up with little viruses until the cell pops and out comes more viruses ready for infection!

18. And instead of your cell doing what it is supposed to do…
YOUR CELL IS REPROGRAMMED TO BECOME A VIRUS MAKING MACHINE!
This “host” cell eventually fills up with little viruses until the cell pops and out come more viruses ready for infection!

19. And instead of your cell doing what it is supposed to do…
YOUR CELL IS REPROGRAMMED TO BECOME A VIRUS MAKING MACHINE!
This “host” cell eventually fills up with little viruses until the cell pops and out comes more viruses ready for infection!
The “host” cell is dead.

20. Short vid… http://www.youtube.com/watch?v=67ays2ZYr48&feature=related

21. And these new viruses can now spread around a body to infect other cells near it.

22. next…
anti-microbial resistance. HIV infection…

23. http://science. howstuffworks

24. Life Science: Viruses DQ’s
What is a virus, and how does it reproduce?
How does the body fight a virus? What are antibodies?
What was Edward Jenner’s discovery, and how did it lead to the development of vaccines?
How does a vaccine work?
Who invented the polio vaccine—the first vaccine that didn’t make people sick?
How can new viruses emerge?
What viral disease affects one in 100 people between the ages of 15 and 49 and is especially prevalent in Africa?
What is one way new viruses are being monitored and controlled?