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Bacteriology > Exam 3: Moraxella > Flashcards

Exam 3: Moraxella Flashcards

1
Q

What causes Pink eye in cattle

A

Moraxella bovis

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2
Q

VF of M. bovis

A

Fimbrae
Capsule
LPS
Exotoxins

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3
Q

What are the two exotoxins of M. bovis

A

Cytotoxin

Pore forming toxin

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4
Q

How is M bovis transmitted

A

direct contact

flies

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5
Q

Dx M. bovis

A

Immunofluoresencce
culture
pcr

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6
Q

How do you prevent M. bovis infection

A
  1. Fly control
  2. Dec. dust
  3. Vacc.
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7
Q

How do you tx M.bovis

A

Antibiotics

Cortico sterroids

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8
Q

What is the other pathogen that causes conjunctivitis in bovine

A

Mycoplasma bovoculi

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9
Q

Associtated with keratoconjunctivitis and pneumonia in sheep and cows

A

Mycoplasma ovis

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10
Q

What are the capsule types of Pasteurella multocida

A

A-E

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11
Q

What Capsule type of P. multocida is mucoid and contains hyaluronic acid

A

Type A

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12
Q

VF of P. multocida

A
  1. Adhesins
  2. Capsule
  3. Cell wall
  4. Fe acquisition
  5. Toxins
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13
Q

What is the importance of the capsule in P. multocida

A
  1. adherence
  2. anti-phagocytic
  3. anti- complement
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14
Q

What are the two toxins produced by pasteurella?

A
  1. RTX

2. Rho

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15
Q

What is the function of RTX toxin in P. mltocida

A
  1. leukotoxin
  2. impairs pulmonary macrophage
  3. inflam rxn with tissue destruction
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16
Q

What are the two strains of P. multocida

A
  1. High virulent strains

2. low virulent strains

17
Q

P. multocida infection in rabbits

A

snuffles

18
Q

what can P. multocida manifest into in rabbits

A

pleuropneumonia
otitis
conjunctivitis
abscesses

19
Q

What does low pathogenic serovars of P. multocida cause in cattle

A

bronchopneumonia

20
Q

What does high pathogenic serovars of P. multocida cause in cattle

A

Hemorrhagic septicaemia

21
Q

What are the two serotypes of P. multocida in attle

A

B:2
E:2

22
Q

T/F P. multocida has a low fatality rate in cattle

A

F. high mortality

23
Q

How is P. multocida spread in cattle

A

tonsils of carriers

24
Q

Tx. for P. multocida in cows

A

ABx dont work

25
Q

What does P. multocida cause in pigs

A

Atrophic rhinitis

lung pasteurellosis

26
Q

How is P. multocida spread in pigs

A

aerosol

27
Q

Where do carriers of P. multocida in pigs carry the dz

A

nose

28
Q

What is P. multocida infection in poultry called?

A

Fowl cholera

29
Q

Who is most susceptible to Fowl cholera

A

Ducks

30
Q

Where is P. multocida found in healthy animals

A

nose and beak

31
Q

C/S of P. multocida in poultry

A

Sneezing

edema of head

32
Q

how do dogs and cats get infection with P. multocida

A

Licking wounds

Bites

33
Q

What pathogens can humans get from bite wounds

A

Pasteurella
Neisseria
Capnocytophaga
Bartonella henselae

Bacteriology (31 decks)

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