SCI110 Questions About Disease I

1. What is the difference between a bacterium and a virus?  What are the two ways that our bodies fight viral infections (See chapter 6 in the textbook.)

2. What was "sulfa?" Where did it come from, and why was it important? (See Chapter 3 in the textbook).

3. What are penicillin and streptomycin? Where do they come from? How were they discovered? Why are they important? 

4. Why are many of our antibiotics losing effectiveness? What is being done to replace them?

5. How can we catch hepatitis A, B, and C? What are the symptoms? How do we try to prevent or cure them? Are there other varieties of hepatitis virus other than A, B, and C?

6. What is the difference between a coccus and a bacillus? What is the difference between a gram-postitive and gram-negative bacterium, and why is the difference important?

7. Who was Louis Pasteur? Why were his rabies vaccine and heat treatment of food ("pasteurization") important?