Bacterial diseases of Skin pt 1 Flashcards
normal skin microbes are usually harmless unless
penetrate epidermis or immune system is suppressed
abscesses are…
pus filled from bacteria
abscesses are often called
pimple
What is a large painful nodular extension of folliculitis
furuncle or boil
what is difference between carbuncle and furuncle
carbuncle is group of furuncle that penetrates deeper into tissues
What is is called where a skin abscess involves a hair follicle
folliculitis
What is folliculitis called at eyelid base
sty
pathogen of abscesses/folliculitis
staphylococcus epidermidis
staphylococcus aureus
what causes hot tub folliculitis
pseudomonas aeruginosa
What is SSSS
staphylococcal scalded skin syndrom
describe symptoms of SSSS
reddening->large blisters containing fluid LACKING BACTERIA OR WBC -> 2 days skin peels off in sheets as if dipped in boiling water
pathogen of ssss
staphylococcus aureus strains
ssss occurs mainly in
infants
how is ssss transmitted
person to peron
how is SSSS diagnosed
sloughing of skin
TX of SSSS
antibiotics, usually hospitalization (often burn unit)
how is SSSS prevented
-difficult due to widespread presence of s. aureus
What is another name for impetigo
pyoderma
what is impetigo
skin infection involving top layers of skin
characteristics of impetigo
flat red patches, common in kids become pus filled vescicles that crust (pyoderma)
is there pus with WBC in impetigo or ssss
impetigo
erysipelas
fiery rash with raised borders
what does erysipelas usually occur
legs
pathogen of impetigo and erysipelas
s. aureas MC in impetigo
steptococcus pyogenes MC in erysipelas
but both are in both
impetigo and erysipelas are transmited
person to person
fomites
impetigo occurs mostly in who
kinds
peak incidence of erypelas and who is rarely affected
60-80, adolescent to adults
diagnose impetigo and erysipelas
presence of vescicles
What is called the “flesh eating bacteria”
necrotizing fascitis
characteristics of Necrotizing fasciitis
secretes enzymes and toxins
big, purplish red blisters
what does necrotizing fasciitis do
destroy muscle and fat tissue
what other issue is involved with necrotizing fasciitis
toxemia
% fatality of NF
> 50
pathogen of NF
steptococcus pyogenes
Buruli ulcer pathogen
mycobacterium ulcerans
symptoms of buruli ulcer
painless nodule, finger swelled 2 x
PAINLESS
toxin produced by buruli ulcer
mycolactone
