Impetigo Flashcards
1
Q
Characteristics Impetigo
A
- Superficial bacterial infection (skin flakes or peels)
- Staphylococcus aureus or Streptococcus pyrogens or both
2
Q
Signs and Symptoms Impetigo
A
Lesions: peeling, crusty, flaky scabs, or honey-colored crusts
Located around mouth, face, and extremities
3
Q
Staphylococcus aureus Impetigo
A
Exfoliative toxins A and B cause
- blistering
- Spread of bacterium
4
Q
Streptococcus pyogenes Impetigo
A
- Gram positive coccus
- Beta hemolytic on blood agar
5
Q
Streptococcus pyogenes Impetigo causes what diseases?
A
- Streptococcus pharyngitis
- Scarlet fever
- Puerperal fever
- Necrotizing fasciitis
- Poststreptococcal conditions
6
Q
Pathogenesis and Virulence Factors Impetigo
A
-Large amounts of enzymes and toxins
7
Q
Who does Staphylococcus aureus mostly affect?
A
Older children
8
Q
Who does Streptococcus pyogenes mostly affect?
A
Newborns
9
Q
Transmission of Impetigo
A
Direct and Indirect contact
