1. Germs: The Good, the Bad, and the Ugly Clara Pelfrey, Ph.D. Cleveland Clinic & Case Western Reserve University

3. Some common conditions caused by germs Condition Kind of Germ Common Symptoms Athelete’s Foot Fungus Red, scaly, itchy rash on feet Chickenpox Virus Fever; headache; red, pimple-like rash Common Cold Virus Sore throat; runny or stuffed-up nose; coughing; sneezing Ear infection Bacteria Pain and/or swelling in ear; fever Flu Virus Fever; headache; sore throat; coughing; muscle aches Strep Throat Bacteria Fever; sore throat; headache; swollen tonsils or yellow patches at back of throat

8. Three general shapes of bacteria: Round (coccus, plr. cocci) Rod (bacillus, plr. bacilli) Spiral (spirillum, plr. spirilla) Example: Staphylococcus epidermidis Example: Escherichia coli Example: Treponema pallidum

10. Computer-generated video showing the motions of an E. coli bacterium

11. Types of bacteria

12. “ Streak plate” on a petri dish to isolate bacteria

13. Bacterial colonies on agar

14. Label agar plates on the BOTTOM … to prevent condensation

15. Enterotubes help hospitals identify bacteria

17. The “Good guys” See if you can figure them out! Game show quiz:

18. BEER YEAST

19. Blue cheese Blue mold

20. Champagne Yeast

21. Compost Soil Bacteria

22. Oil spill These "oil-eating" bacteria are shown swimming around large droplets of oil.

23. Oenococcus Oeni -lactic acid bacterium Wine

24. Yogurt “ Live active cultures” Lactobacillus acidophilus

25. Penicillin Penicillium

26. Penicillium mold inhibiting bacterial growth Mold Bacteria Zone of inhibition

27. Bread Baker’s yeast

28. Sausage & Salami Soy sauce Pickles

29. The “Bad” guys

30. Click on the picture to go to a web video on proper sneezing technique When you sneeze, air explodes out of your lungs at a speed of 100 miles per hour. The air in a cough travels at 500 mph!

32. The “Ugly”

33. Bacteria growing on your teeth can cause tooth decay

34. Bacterial colonies

35. Moldy bread!

36. Relative size of a bacterium, compared to a virus

37. Play HOW BIG? MOVIE

40. DNA Viruses

41. RNA Viruses

42. AIDS Virus structure

43. AIDS Virus particles

45. Pasteur gives the first Rabies vaccine

46. Benjamin Franklin