1. A disease is a description of symptoms

2. What do you think caused the following diseases?

3. Gangrene is one of the manifestations of plague, and is the origin of the term "Black Death" given to plague throughout the ages 
Gangrene is one of the manifestations of plague, and is the origin of the term "Black Death" given to plague throughout the ages 

4. Yersinia pestis is a Gram-negative, aerobic, nonmotile, bacillus
Yersinia pestis is a Gram-negative, aerobic, nonmotile, bacillus. It is a facultative intracellular parasite.
Small bacteria resemble a safety pin.

5. Cholera

8. Scurvey

9. Coronary heart disease