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Bacteriology > Exam 3: Avibacterium > Flashcards

Exam 3: Avibacterium Flashcards

1
Q

What causes Infectious coryza

A

Avibacterium paragallinarum

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2
Q

T/F. A. paragallinarum is NAD dependent

A

T

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3
Q

What does A. paragallinarum cause in chickens

A

rhinitis and sinusitis

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4
Q

VF of A. paragallinarum

A

Capsule
Adhesins
Endotoxin
Fe acquisition

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5
Q

How is A. paragallinarum transmitted

A

Water

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6
Q

Who is most susceptible to A. paragallinarum

A

stressed

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7
Q

C/S of acute A. paragallinarum

A

General
anorexia
conjunctivitis

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8
Q

C/S of subacute A. paragallinarum

A

Sinitis with pus

edema of head and neck

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9
Q

Dx A. paragallinarum

A

Bacterial culture

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10
Q

Tx A. paragallinarum

A

Abx. must be fast

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11
Q

Who becomes infected with Ornithobacterium rhinotracheale

A

Poultry

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12
Q

Predisposing factors of O. rhinotracheale

A
  1. stress
  2. high density
  3. ventilation
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13
Q

pathogenesis of O. rhinotracheale

A

Nose> Trachea> airsac> lung

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14
Q

C/S of O. rhinotracheale

A
  1. sneezing
  2. nose exudate
  3. Coughing
  4. edema
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15
Q

Tx: of O. rhinotracheale

A

bacterial culture

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16
Q

Why is culture difficult fo O. rhinotracheale

A

Slow growth
fequently overgrown by other bacteria
needs CO2

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17
Q

WHy is ELISA not common for O. rhinotracheale dx

A

Only serotype A

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18
Q

How do you Tx O. rhinotracheale

A

abx

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19
Q

Who becomes infected with Actinobacillus pleuropneumoniae

A

pigs less than 6mo

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20
Q

What are the two biotypes of A. pleuropneumoniae

A

Biotype 1: NAD Dependent

Biotype 2: NAD independent

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21
Q

How many serotypes of A. pleuropneumoniae are there

A

16

22
Q

What is the purpose of S. aureus when culturing A. pleuropneumoniae

A

To provide NAD

23
Q

How is A. pleuropneumonia spread

A

direct contact
aerosol
ventilation

24
Q

Where is A. pleuropneumoniae carried by carriers

A

Nose
Tonsils
long noduli

25
Q

What is the major predisposing factor for A. pleuropneumoniae

A

Stress

26
Q

What Exotoxin is produced by A. pleuropneumoniae

A

Apx toxin

27
Q

VF of A. pleuropneumoniae

A
  1. Fimbrae
  2. TBP
  3. Capsule
  4. LPS
  5. OMP
  6. Exotoxin Apx
  7. Enxymes
  8. HSP
28
Q

What are the enzymes produced by A. pleuropneumoniae

A

Protease
Cu
Zn
SOD

29
Q

C/S of A. pleuropneumoniae

A

Resp distress

General symptoms

30
Q

What 3 things are included in vacc. for A. pleuropneumoniae

A
  1. Type !V fimbriae
  2. Transferin binding p
  3. Apx toxins
31
Q

Dx A. pleuropneumoniae

A
  1. C/s
  2. Autopsia
  3. Bacterial culture
32
Q

How do you detect carriersof A. pleuropneumoniae

A

PCR

Swab from nose or tonsils

33
Q

Where is A. suis carried in pigs

A

tonsils and vagina

34
Q

A. suis is pathogenic for ____

A

mice

35
Q

C/S of A. suis

A

young: acute mortality
Weaning: General symptoms and resp. distress
Adult: abscesses, fever

36
Q

How do you dx A. suis

A

Bacterial culture

37
Q

Tx of A. suis

A

Abx

38
Q

What are the two subspecies of A. equuli

A
  1. Haemolyticus (horse)

2. equuli (horse and pig)

39
Q

Where is A. equuli carried?

A

mouth and GIT

40
Q

What toxins are produced by A. equuli

A

AQX

41
Q

C/s of A. equuli

A

Bronchitis
Pleuritis
Pneumonia

42
Q

What causes sleepy foal dz

A

A. equuli

43
Q

C/S of sleepy foal dz

A

septicaemia
enteritis
slimy pus

44
Q

What happens when adult horses are infected with A. equuli

A

abortions of sleepy foals

45
Q

where does A. equuli frequently localize?

A

joints

46
Q

What causes Wooden tongue

A

A. lignieresii

47
Q

A. lignieresii is and inhabitant of ___

A

nasopharynx

48
Q

What organ is most effected by A. lignieresii

A

tongue

49
Q

What bacterium causes a capsule full of pus to form on the tongue

A

A. lignieresii

50
Q

The pus caused by A. lignieresii contains ____ granules

A

sulfur

51
Q

How do you dx A. lignieresii

A

Histology

microscopy of granules

Bacteriology (31 decks)

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