Staphylococcus aureus GENERAL CHARACTERISTICS · Gram’s classification – Gram positive bacteria · Shape – Spherical (Cocci) · Arrangement – Bunched or Grape like clusters · Motility – Non-Motile · Capsule - Absent · Endospores - Absent · Respiration – Aerobic/Facultative anaerobic · Optimum Temperature - 37 °C · Optimum pH – 7.0 to 7.5 · Normal human flora on skin and mucosal surfaces. · The organisms are ubiquitous, so there are no Geographic or seasonal limitations. · Discovered by Anton J. Rosenbach (German Surgeon) in 1884. PATHOGENICITY OF Staphyl...