| • | can think of as secondary invaders of traumatic skin lesions (vs. staph, which invades intact skin?) |
STAPH or STREP:
cellulitis
erysipelas
impetigo contagiosum
toxic shock syndrome
STREP:
Direct
| • | blistering distal dactylitis |
| • | Scarlet fever (see EXANTHEMS) |
| • | streptococcal necrotizing fasciitis |
Indirect
| • | post-streptococcal glomerulonephritis |
(all with neutrophils except scleredema)
|
Lancefield groups (c-carbohydrate):
| • | group A ß-hemolytic strep (= strep pyogenes) |
| • | group B (=strep agalactiae) (mnemonic: B for Baby) |
| • | no Lancefield antigen classification: strep viridans, strep pneumoniae |
| • | group D (=enterocci and non-enterococci) |
|
