a) localized infection of skin

Bacterial

Folliculitis, furuncles, carbuncles, or abscess------------------S. aureus

Cellulitis, ersipelas, impetigo (pyoderma), necrotizing fasciitis---------S. pyogenes

Malignant pustule-------Bacillus anthracis

Actinomycotic mycetoma------------Actinomycetes

Fungal

Superficial mycoses: Pityriasis versicolor-----------Yeast:Malessezia furfur

Cutaneous candidiasis-----------Yeast: Candida species

Cutaneous mycoses---------Dermatophytes

Eumycotic mycetoma----Madurella and Allescheria species

Viral

Skin warts--------Human papillomaviruses (HPVs)

Herpes simplex-------Herpes simplex viruses 1 or 2

Zoster (shingles)-------Varicella-zoster virus (VZV)

Roseola infantum------Human herpes viruses 6 (HHV 6 )

Erythema infectiosum----Human parvovirus B 19

Molluscum contagiosum----Molluscum contagiosum virus ( MCV)

Smallpox ---------Variola virus