Folliculitis

PATHOGENS

• Common pathogens:
  • S. aureus: especially MRSA
  • P. aeruginosa: associated with whirlpools, hot tubs, heated swimming pool exposures
  • Pityrosporum: HIV-associated
• Less common pathogens:
  • Coliforms: e.g., Klebsiella, Proteus spp., etc
  • Demodex folliculorum: face mite, mostly HIV-associated
  • HSV
  • Trichophyton
  • Malassezia
    • Causes truncal folliculitis.
• Also, non-infectious inflammatory folliculitis in HIV: eosinophilic folliculitis