Staph aureus is the most common cause of septic arthritis in adults.
Man kneeling with camel and camel kneeling. Staph aureus usually causes a post-viral pneumonia when our immune system has been weakened. Icosahedron shaped balls dangling from the camels back. Pneumonia and patchy infiltrates seen on X-ray. Man coughing next to the camel with patchy quilts. Protein A as the virulence factor binds Fc region of IgG, inhibiting complement and phagocytosis. Staff with the letter A at the end and the A binding the Fc region of the antibody. He is wearing yellow because mannitol fermenters turn the agar yellow. Moses and the Golden Staff ('naf for staph') Purple robes.