All of the following are TRUE statements about staphylococci, EXCEPT:
Impetigo pyoderma, a disease characterized by blister-like multifocal pustules on the face and hands in children and adults, can be caused by Staphylococcus aureus and/or beta hemolytic Streptococcus pyogenes, not only by S. aureus. All of the other statements are true. Also Know: Staphylococci form clusters and are catalase-positive. In staphylococcal TSS, the pyrogenic exotoxin TSST-1 is produced during the course of a staphylococcal infection with systemic disease as a result of absorption of toxin from the local site. TSS may be the result of in vivo production of any of the Staph SAgs, with TSST-1 simply the most common offender. Ref :Ray C.G., Ryan K.J. (2010). Chapter 24. Staphylococci. In C.G. Ray, K.J. Ryan (Eds), Sherris Medical Microbiology, 5e.
Toxic shock syndrome may affect both males and females
Many individuals are nasal carriers of S. aureus
Impetigo is caused only by S. aureus
S. epidermidis is often responsible for infective endocarditis in intravenous drug abusers