i) What are the most common microorganisms found in the nose? Oropharyx, Nasopharynx? Tonsillar crypts? Lower respiratory tract? Oral cavity? Eye? External ear? Stomach? Small intestine? Colon? Genitourinary tract?

ii) Differentiate between common-source and propagated epidemics.

iii) Why is cholera the most sever form of gastroenteritis? What is the most common form of gastroenteritis in the United States of America?

iv) What is the standard treatment for most bacterial diarrheas?

v) Outline the determinants of infectious disease as it relates to an organism that causes any common nosocomial infection.