1. VIROLOGY (STUDY OF VIRUSES)

2. A tiny, nonliving particle that is… VIRUS: *Latin for “poison” or “slimy liquid” Definition: 1…smaller than a cell 2…not considered a "living” organism 3…virulent - can cause disease

3. A Virus is a parasite invades living cells - can only "live"(survive/reproduce) within a cell

4. Where do viruses come from? 1.What does Genesis tell us? 2.How could viruses have fulfilled a GOOD purpose? 3. How do you see the mark of sin on even these very small pieces of God’s creation? What do we KNOW?

5. Properties of Viruses (what they look like and other stuff like that!) *consist of DNA.. *..or RNA This is their genetic material Size *smaller than smallest bacteria cell

6. (Properties of viruses, continued…) Shapes - Rod, brick, thread, or bullet..or may have more complicated structures almost like ROBOTS

7. (virus shapes, continued..) RabiesEbola Influenza Early Italian scientists Thought this illness was caused by the INFLUENCE of the stars And planets.. Hepatitis Polio Rhinovirus (common cold) Rotavirus

8. Rabies

9. Polio Dr. Jonas Salk 1914-1995

10. Influenza

11. Ebola

12. Smallpox Edward Jenner

13. How do viruses (most) attack cells and make us sick?? Let’s use the T4 bacteriophage as an example: T4 bacteriophage is a virus that looks a lot like an alien landing pod------> With its six legs, the bacteriophage attaches to the surface of the much larger bacteria Escherichia coli (E. coli). Once attached, the bacteriophage injects DNA into the bacterium. The DNA instructs the bacterium to produce masses of new viruses.

14. So what happens to the bacterium? So many new “baby” viruses are produced that the E. coli BURSTS!! This process of bursting is called LYSIS.

15. Here's what an actual population of E. coli looks like as it is wiped out by T4 bacteriophage: Now THAT’S a NASTY virus!