A most common cause of nongonococcal septic arthritis is: (A) H.influenza, (B) Staph-aureus, (C) Pseudomonas, (D) Streptococcus
Answer is B. Staphylococcus aureus is a Gram-positive, round-shaped bacterium that is a member of the Firmicutes, and it is a member of the normal flora of the body, frequently found in the nose, respiratory tract, and on the skin.