Infectious diarrhea

Question 1

What are the infections affecting the small bowel?

Answer 1

• Gives watery diarrhea
  
  • Norwalk
  • Rotavirus
  • Giardia
  • Cholera
  • ETEC (enterotoxogenic e coli)

Question 2

What are the organisms that prefer to colonize the colon?

Answer 2

• C jejuni
  
  • Shigella
  • Salmonella
  • E coli O157:H7
  • C difficile
  • E histolytica

Question 3

The cholera toxin binds what cellular receptor and influences what intracellular biochemical pathway?

Answer 3

• Ganglioside GM1
○ Receptor
• Mechanism
○ Alters cAMP