1. Major Microbial Diseases
Person-to-person transmitted diseases

4. Streptococcus pyogenes

7. Β-hemolysis

8. Scarlet fever

9. S. pneumoniae

10. Corynebacterium diphtheriae

13. TB

15. Measles or rubeola

16. German measles or rubella

17. mumps

18. Chicken pox varicella

30. Sexually Transmitted Diseases
Chlamydia
- Most frequently reported STD in U.S.
- Caused by unusual Gram-negative bacteria - Chlamydia trachomatis
- Chlamydia pneumoniae
- Obligate intracellular pathogens
- Both cause STDs, as well as pneumonia and trachoma of the eye.
Figure 26.12 30

31. Figure 18.45 31

36. Herpes simplex 1

37. Herpes simplex 2