Penicillinase Negative Staphylococcus Aureus

**Semantic type:** Bacterium

**Definition:** A subgroup of S. aureus bacteria that lack the enzymatic function of beta-lactamase (penicillinase) and are therefore sensitive to beta-lactam (penicillin) antibiotics.

**Synonyms:** - STAPHYLOCOCCUS AUREUS, PENICILLINASE NEGATIVE