Obligate intracellular Pathogens

Rickettsia

Chlamydia

Coxiella

Catalase-positive organisms

"Cats Need PLACESS to Belch their Hairballs."

Catalase positive pathogens:

Norcardia

Pseudomonas

Listeria

Aspergillus

Candida

E. coli

Staphylococci

Serratia

B. cepacia

H. pylori

Pigment-producing bacteria

Actinomyces israelii = yellow sulfur granules