41 Bacteroides.

Question 1

Describe the physiology and structure of Bacteroides.

Answer 1

• Anaerobic, G (-), pleomorphic in size/shape and resembles a mixed population of organisms.

Question 2

What stimulates the growth of bacteroides?

Answer 2

• 20% bile.

Question 3

What are the preliminary indetifications for B. fragilis?

Answer 3

• 1) Gram strain and colonial morph.
• 2) resistance to kanamycin, vancomycin, and colistin.
• 3) stimulates growth in 20% bile.

Question 4

What is the treatment for G (-) anaerobic rods.

Answer 4

• Metronidazole, carbapenems, beta-lactam-beta-lactamase inhibitors.