Staphylococcus spp.

Morphology

Shape: cocci

arranged in clusters

Staining

Gram +

Pathogenic factor

Exotoxins

Cultivation

blood agar

S. Aureus: golden with ß-hemolysis

S. epidermitis: white NO ß-hemolysis

Glucose broth: turbidity

MRSA Screen Agar: added antibiotics, if it growths - MRSA

Specimen

• Cerebrospinal fluid

• Sinus puncture

• Pus secretion

Identification

Plasma coagulase test:

+S. aureus

-S.epidermidis

Symptoms

LOCAL:

• Abscesses, furuncles (pus)

• Impetigo

Systemic:

• Fever and chills, Fatigue

• Bacteremia / sepsis

• Endocarditis

• Osteomyelitis

• Pneumonia

• UTI

Toxin-related:

• Food poisoning

• Toxic shock syndrome

Antibiotics

No MRSA: ß-lactams

Penicillin allergy: Cephalosporins

MRSA: Vancomycin / Linezolid / Doxycyclin

CoNeg: Doxycyclin

Vaccine

NO VACCINE

(Only OM-85 bacterial lysates for respiratory infections)