TY - CHAP M1 - Book, Section TI - Skin and Soft-Tissue Infections A1 - Schwinghammer, Terry L. A1 - DiPiro, Joseph T. A1 - Ellingrod, Vicki L. A1 - DiPiro, Cecily V. Y1 - 2021 N1 - T2 - Pharmacotherapy Handbook, 11e AB - Bacterial infections of the skin can be classified as primary or secondary (Table 48-1). Primary bacterial infections are usually caused by a single bacterial species and involve areas of generally healthy skin (eg, impetigo and erysipelas). Secondary infections develop in areas of previously damaged skin and are frequently polymicrobic.The conditions that may predispose a patient to the development of skin and soft-tissue infections (SSTIs) include: (1) a high concentration of bacteria; (2) excessive moisture of the skin; (3) inadequate blood supply; (4) availability of bacterial nutrients; and (5) damage to the corneal layer, allowing for bacterial penetration.The majority of SSTIs are caused by gram-positive organisms on the skin surface. Staphylococcus aureus and Streptococcus pyogenes account for the majority of SSTIs. Other common nosocomial pathogens include Pseudomonas aeruginosa (11%), enterococci (9%), and Escherichia coli (7%). SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/04/19 UR - accesspharmacy.mhmedical.com/content.aspx?aid=1178897529 ER -