1. Viruses

2. But first…Classification Recap

8. And now back to Viruses! 2.2

9. Living vs. Non-Living? Organization (Cells) Metabolism Responsiveness Growth Reproduction Evolution Ecology

10. Examples of Viral Diseases common cold, chicken pox, AIDS, cholera, rabies, influenza, hepatitis B, cold sores, measles, mumps, pneumonia, etc. hepatitis C & links to liver cancer many animal & plant viruses

11. Epidemic vs. Pandemic limited vs. widespread (usually global) geographic region Have you seen this film? http://www.youtube.com/watch?v=4sYS yuuLk5g http://www.youtube.com/watch?v=4sYS yuuLk5g

12. Host Range most are very specific some can infect many species bacteriophage infects bacteria cells

13. Basic Structure protein capsid genetic material (DNA or RNA)

14. Classification

16. Viral Reproduction lytic cycle (lysis) lysogeny (dormancy)

17. Vaccinations global elimination of smallpox by WHO in 1980 human papillomavirus (HPV) & connection to cervical cancer

18. Gene Therapy

19. Viroids small infectious pieces of RNA without capsid discovered in 1971 responsible for some plant diseases

20. Prions abnormally-shaped infectious proteins cause rare diseases in mammals consumption of infected animals causes prions to enter blood and travel to brain