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Chapter 25 (Pseudomonas) - Chapter 31 (Bordetella) > 27: Pasteurella spp. Mannheimia haemolytica, Bibersteinia trehalosi > Flashcards

27: Pasteurella spp. Mannheimia haemolytica, Bibersteinia trehalosi Flashcards

1
Q

Oxidase

A

Positive

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2
Q

Environment

A

Facultative anaerobes

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3
Q

Grows best on

A

Enriched media (blood/serum supplemented)

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4
Q

Can tolerate bile salts in MacConkey agar

A

Mannheimia haemolytica
Bibersteinia trehalosi
Pasteurella aerogenes

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5
Q

Family

A

Pasteurellaceae

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6
Q

Staining

A

Pasteurellae- bipolar staining in Giemsa method

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7
Q

Major pathogens

A

P. multocida
M. haemolytica
B. trehalosi

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8
Q

Habitat

A

Ommendals on upper respiratory tract (mucosae)

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9
Q

-Round, greyish, shiny, non-haemolytic
-some are mucoid (thick hyaluronic acid)

A

P. multocida

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10
Q

sweetish odour

A

P. multocida

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11
Q

Haemolytic and odorless

A

M. haemolytica
M. granulomatous
B. trehalosi

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12
Q

Round, greyish, non-haemolytic (except)

A

Pasteurella spp. ( P. testudinis)

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13
Q

MacConkey agar- Pasteurella multocida

A

Do not grow

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14
Q

MacConkey agar- M. haemolytica, B. trehalosi

A

pin-point, red colonies

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15
Q

Infections are

A

Endogenous

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16
Q

Adhesins

A

-Fimbriae
-Surface fibrils
-Filamentous haemagglutinins
-Capsule…

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17
Q

Type A and B capsule

A

Hyaluronic acid

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18
Q

Type D capsule

A

Heparin

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19
Q

Type F

A

Chondroitin

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20
Q

P. multocida type D major virulence

A

PMT toxin- atrophic rhinitis in pigs

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21
Q

M. haemolytica major adhesin

A

-OmpA
-Lpp1

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22
Q

M. haemolytica and B. trehalosi 4 major virulence

A

-Adhesins
-Capsule
-Endotoxin
-Leukotoxin
(ACE-L)

23
Q

Shipping fever

A

-P. multocida type A
-M. haemolytica

24
Q

Atrophic rhinits

A

Pigs
P. multocida type A and D

25
Q

Snuffles

A

Rabbit
P. multocida type A

26
Q

Fowl cholera

A

Poultry
Type A and F (turkeys)

27
Q

Associated with enzootic pneumonia complex in calves

A

P. multocida type A

28
Q

Haemorrhagic septicaemia (Asia)

A

P. multocida type B

29
Q

Rare cases of peritonitis

A

Calves
Type F

30
Q

Septicaemia under 3 months age

A

Sheep
M. haemolytica

31
Q

Septicaemia 5-13 months of age

A

Sheep
Bibersteinia trehalosi

32
Q

Gangrenous mastitis

A

M. haemolytica

33
Q

Haemorrhagic septicaemia (Africa)

A

Cattle and buffaloes
Type E

34
Q

Fibrogranulomatous panniculitis

A

Cattle
M. granulomatis

35
Q

Lymphangitis (rare)

A

Cattle
P. lymphangitidis

36
Q

Found in respiratory tract

A

Dogs and cats
P. stomatis

37
Q

Found in intestine

A

Ducks
P. anatis

38
Q

Commensals in oral cavity and nasopharynx

A

Dogs and cats
P. dagmatis

39
Q

Positive on haemolysis on sheep blood agar

A

M. haemolytica
B. trehalosi

40
Q

Positive for MacConkey

A

M. haemolytica
B. trehalosi

41
Q

Positive for distinctive odor colonies

A

P. multocida

42
Q

Positive for indole

A

P. multocida
P. pneumotropica

43
Q

Positive for catalase

A

Except B. trehalosi

44
Q

Positive for urease

A

Only P. pnemotropica

45
Q

Positive for ormithine decarboxylase activity

A

P. multocida
P. pneumotropica

46
Q

Lactose positive

A

M. haemolytica

47
Q

Positive for sucrose

A

All

48
Q

Positive for D-trehalose

A

B. trehalosi
P. pnemotropica
P. multocida (variable)

49
Q

Positive for L-arabinose

A

None
P. multocida (variable)

50
Q

Positive for maltose

A

M. haemolytica
B. trehalosi

51
Q

Positive for D-xylose

A

M. haemolytica (+)
P. multocida (v)
B. trehalosi (-)
P. pneumotropica (v)

52
Q

Species included (major pathogens)

A

P. multocida
B. trehalosi
M. haemolytica

53
Q

Environment

A

Facultative anaerobes

54
Q

Motility

A

Non motile

Chapter 25 (Pseudomonas) - Chapter 31 (Bordetella) (7 decks)

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