Rickettsia I and II

Question 1

What are the characteristics of Rickettsiales spp?

Answer 1

• Small (0.2 - 2 mcm)
• Obligate
• Aerobic
• Intracellular
• Gram negative
• vector-borne pathogens
• Mitochondria like orgaism
• Giemsa or other polychromatic stains
• Depend on the host for energy

Question 2

How is Rickettsiales treated?

Answer 2

• Tetracyclines
• Chloramphenicol