Ch. 13 - Contact Diseases

Question 1

Skin wounds

Answer 1

From surgery - indigenous microbiota to tissues –> infection

Question 2

Chronic wounds

Answer 2

Result from lack of blood flow –> predisposing condition

Eg. Bed sores

Question 3

Acute wounds

Answer 3

Cuts, bites, tubes inserted (catheters, IVs)

Cause bloodstream infection in hospitalized pts

Question 4

Staphylococcus aureus

Answer 4

Can initiate disease when penetrate skin barrier or mucous membrane –> create abscess and produce toxins

Question 5

Folliculitis

Answer 5

S. Aureus contact disease

Pus-filled pockets at base of hair follicle

Question 6

Abscess

Answer 6

S. Aureus contact disease

Pus-filled lesion

Question 7

Furuncle

Answer 7

S. Aureus contact disease

Boil, warm, painful abscess in region of hair follicle

Question 8

Carbuncle

Answer 8

S. Aureus contact disease

Group of deeper, connected, abscesses –> spread via skin contact

Question 9

Impetigo

Answer 9

S. Aureus contact disease

Surface level, very contagious, thin-walled blisters

Toxin-generated contact disease –> blistering of skin

Question 10

Scalded skin syndrome

Answer 10

S. Aureus contact disease

Infants, young kids

Question 11

Toxic Shock Syndrome

Answer 11

S. Aureus contact disease

Sudden high fever, rash, circulatory collapse

Peeling skin

1980s outbreak from ultra-absorbent tampons

Question 12

Proprionibacterium acnes (P. Acnes)

Answer 12

Gram Pos
Acne - chronic inflammation

85% of adolescents and young adults

Hair follicles swollen with sebum and keratinocytes –> become “plugged”

Noncommunicable, nonpreventable