1. Bacterial Diseases

2. Rickettsias Coccus or bacillus Intracellular parasite
Normal host: arthropod (gastrointestinal tract)
Transmitted via mouthparts or feces
Named after discoverer – Dr. Harold Ricketts

3. Rocky Mountain Spotted Fever
Rickettsia rickettsii

4. Rickettsia rickettii

5. Typhus Fever Rickettsia prowazekii
Normal host: human body lice and human head lice

6. Rickettsia prowazekii

7. Typhus fever symptom

8. Lyme disease
Normal host: ticks on small mammals

9. Borrelia burgdorferi

10. Lyme disease symptom

11. Tetanus
Causes nerve cells to send continuous messages to the muscles to contract
Symptoms:
Stiffness of jaw (lockjaw)
Stiffness of abdominal muscles
Headaches
Difficulty swallowing
Can be fatal is untreated

12. Clostridium tetani

13. “If it has been 10, then do it again.” - Bob Villa
Tetanus vaccine
“If it has been 10, then do it again.” - Bob Villa

14. Clostridium botulinum

15. botulism 3 ways of contracting disease
Foodborne (25%)
Wound (3%)
Infant (72%)
Symptoms usually appear 18 – 36 hours after infection

16. Typhoid fever Bacteria lives in human bloodstream and intestinal tract
Bacteria shed in stools and contaminates food or water
Causative agent: Salmonella typhi

17. Salmonella typhii

18. Typhoid fever
Mary Mallon (Typhoid Mary)
Early 1900s in New York

19. Pneumonia

20. Streptococcus pneumoniae