Enterococcus

Question 1

Habitat

Answer 1

GI tract or man and animal

Member of oropharyngeal, intestinal, vaginal, and skin flora

Question 2

Species

Answer 2

E.faecalis —> 80-90%

E.faecium —> 5-10%

Question 3

Pathogenesis (2)

Answer 3

Intrinsically RESISTANT to many ANTIBIOTICS

Ability to ADHERE to HEART VALVE and RENAL EPITHELIAL CELLS

Question 4

Lab Diagnosis (2)

Answer 4

NON-HEMOLYTIC colonies on blood agar

ESCULIN positive

Question 5

Clinical Infections (3)

Answer 5

1- UTI
MOST COMMON
Cystitis and pyelonephritis
Nosocomial UTI associated with catheterization

2- ENDOCARDITIS
Community bacteremia not Nosocomial

3- INTRA-ABDOMINAL PELVIC and WOUND infections
Endogenous / Mixed