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Bacteriology Final > Skin and Subcutaneous Tissues > Flashcards

Skin and Subcutaneous Tissues Flashcards

1
Q

What bacteria would you find in pyoderma/skin infections?

A
  • coagulase positive staphylococcus
  • streptococcus
  • corynebacterium
  • arcanobacterium
  • pseudomonas
  • pasturella
  • proteus
  • E. coli
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2
Q

Which staphylococcus is the most common isolate that is associated with skin disease in dogs?

A

Staphylococcus pseudointermedius

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3
Q

What is MRSA?

A

Methicillin resistant Staphylococcus aureus

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4
Q

All staphylococcus isolates which are macrolide (erythromycin) resistant should be considered resistant to what other abx unless otherwise confirmed by D-test?

A. Rifampin
B. Penicillin
C. Clindamycin
D. Ampicillin

A

C. Clindamycin

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5
Q

Greasy pig disease is also known as…

A

Staphylococcus hyicus (exudative dermatitis)

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6
Q

Bumble foot (birds) is also known as…

A

Staphylococcus aureus

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7
Q

Botryomycosis hosts?

A

Rodents, human and horse

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8
Q

What type of pathogenesis does botryomycosis cause?

A

Chronic pyogranulomatous inflammation

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9
Q

What is the bacterial isolate of botryomycosis?

A

Staphylococcus aureus

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10
Q

Types of bacterial skin infections in cats?

A
  • mycobacterial infections (feline leprosy)
  • Yersinia pestis (lymph node abscess)
  • Pasteurella spp. (cat bite abscess)
  • sterile abscess
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11
Q

What are some AEROBIC bacteria that are involved in wound infections, draining tracts and abscesses?

A
  • staphylococcus
  • streptococcus
  • Corynebacterium
  • pasteurella multocida (cats)
  • mycobacterium
  • actinomycetes
  • nocardia
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12
Q

What are some GRAM POSITIVE ANAEROBIC bacteria that are involved in wound infections, draining tracts and abscesses?

A

Clostridium

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13
Q

What are some GRAM NEGATIVE ANEROBES that are involved in wound infections, draining tracts and abscesses?

A
  • Fusobacterium
  • Bacteroides
  • Dichelobacter
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14
Q

Which bacteria may potentially cause necrotizing fasciitis and toxic shock syndrome in dogs?

A

Streptococcus Canis

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15
Q

If you have an abscess how would you want to transport it for diagnostics?

A

FNA or contents in anaerobic transport medium

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16
Q

Do not submit dry swabs for culture. True or false?

A

True

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17
Q

If an infection does not respond to ahminoglycosides it indicates to what type of infection?

A

Anaerobic bacterial infection

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18
Q

How do you collect for anaerobic bacteria?

A
  • disinfect skin surface with 70% OH and allow to dry
  • aspirate specimen into the syringe
  • remove air from syringe
  • ship in anaerobic transport medium
19
Q

Dogs and cats presented with non-healing, cutaneous lesions and subcutaneous nodules have what type of infection?

A

mycobacterium infection

20
Q

What is Cutaneous streptothricosis?

A

Dermatophilus congolesi (look like tram tracks)

21
Q

What are the host of Dermatophilus congolensis?

A

cattle, sheep, goat and horse

22
Q

This bacterial skin lesion in cattle is called lumpy jaw. What bacterial species and pathogenesis does it present?

A
  • actinomyces bovis

- pyogranulomatous osteomyelitis

23
Q

What causes foot rot in cattle, sheep and goats?

A

Fusobacterium necrophorum

24
Q

What causes facial eczema due to photosensitization?

A

Mycotoxins (sporidesmin; pithomyces chartarum)

25
Q

Dermatophytosis infections in dogs?

A
  • Microsporum canis
  • Microsporum gypseum
  • Trichophyton mentagrophytes
26
Q

Dermatophytosis infection in cats?

A

Microsporum canis (asymptomatic carriers)

27
Q

Dermatophytosis infection in horses?

A
  • Trichophyton metagrophytes

- Trichophyton equinum

28
Q

Dermatophytosis infection in cattle?

A

Trichophyton verrucosum

29
Q

Dermatophytosis infection in pigs?

A

Microsporum nanum

30
Q

When dealing with a fungal lesion, where on the lesion should you collect?

A. Center
B. Periphery

A

B. Periphery

31
Q

Which fungal infection would you see a fluorescence with?

A

Microsporum canis

32
Q

Persian cats have pseudomycetoma a subcutaneous nodule from what bacterial species?

A

Microsporum canis

33
Q

Griseofulvin acts against what type of fungus?

A
  • dermatophytes
  • PO only
  • acts on mitotic spindles
34
Q

Cryptococcus neoformans infects which parts?

A

Lungs, CNS, eyes and skin

35
Q

Blastomyces dermatitidis infects what?

A
  • lungs primary

- skin lesions in disseminated disease

36
Q

Sporothrix schenckii infects what?

A

cutaneous and lymphatics

37
Q

Which has a capsule?

A. Cryptococcus neoformans
B. Coccidiodies immitis

A

A. Cryptococcus neoformans

38
Q

Swamp cancer is also known as?

A

Pythium insidiosum

39
Q

Streptococcus equi sub equi causes what in horses?

A

strangles - lymphadentitis

40
Q

Cornebacterium pseudotuberculosis causes what in horses?

A

pigeon fever - ulcerative lymphangitis

41
Q

Sporothrix schenkii causes what in horses?

A

lymphocutaneous lesions

42
Q

Burkholderia mallei causes what in horses?

A
  • Glanders (pulmonary or nasal form)

- Farci (skin form)

43
Q

Burkholderia pseudomallei causes what in horses?

A

Meliodosis or pseudoglanders

44
Q

What causes diamond skin disease in pigs?

A

Erysipelothrix rhusiopathiae

Bacteriology Final (5 decks)

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