Exam 3: Moraxella

Question 1

What causes Pink eye in cattle

Answer 1

Moraxella bovis

Question 2

VF of M. bovis

Answer 2

Fimbrae
Capsule
LPS
Exotoxins

Question 3

What are the two exotoxins of M. bovis

Answer 3

Cytotoxin

Pore forming toxin

Question 4

How is M bovis transmitted

Answer 4

direct contact

flies

Question 5

Dx M. bovis

Answer 5

Immunofluoresencce
culture
pcr

Question 6

How do you prevent M. bovis infection

Answer 6

1. Fly control
2. Dec. dust
3. Vacc.

Question 7

How do you tx M.bovis

Answer 7

Antibiotics

Cortico sterroids

Question 8

What is the other pathogen that causes conjunctivitis in bovine

Answer 8

Mycoplasma bovoculi

Question 9

Associtated with keratoconjunctivitis and pneumonia in sheep and cows

Answer 9

Mycoplasma ovis

Question 10

What are the capsule types of Pasteurella multocida

Answer 10

A-E

Question 11

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

Answer 11

Type A

Question 12

VF of P. multocida

Answer 12

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

Question 13

What is the importance of the capsule in P. multocida

Answer 13

1. adherence
2. anti-phagocytic
3. anti- complement

Question 14

What are the two toxins produced by pasteurella?

Answer 14

1. RTX

2. Rho

Question 15

What is the function of RTX toxin in P. mltocida

Answer 15

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

Question 16

What are the two strains of P. multocida

Answer 16

1. High virulent strains

2. low virulent strains

Question 17

P. multocida infection in rabbits

Answer 17

snuffles

Question 18

what can P. multocida manifest into in rabbits

Answer 18

pleuropneumonia
otitis
conjunctivitis
abscesses

Question 19

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

Answer 19

bronchopneumonia

Question 20

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

Answer 20

Hemorrhagic septicaemia

Question 21

What are the two serotypes of P. multocida in attle

Answer 21

B:2
E:2

Question 22

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

Answer 22

F. high mortality

Question 23

How is P. multocida spread in cattle

Answer 23

tonsils of carriers

Question 24

Tx. for P. multocida in cows

Answer 24

ABx dont work

Question 25

What does P. multocida cause in pigs

Answer 25

Atrophic rhinitis | lung pasteurellosis

Question 26

How is P. multocida spread in pigs

Answer 26

aerosol

Question 27

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

Answer 27

nose

Question 28

What is P. multocida infection in poultry called?

Answer 28

Fowl cholera

Question 29

Who is most susceptible to Fowl cholera

Answer 29

Ducks

Question 30

Where is P. multocida found in healthy animals

Answer 30

nose and beak

Question 31

C/S of P. multocida in poultry

Answer 31

Sneezing | edema of head

Question 32

how do dogs and cats get infection with P. multocida

Answer 32

Licking wounds | Bites

Question 33

What pathogens can humans get from bite wounds

Answer 33

Pasteurella Neisseria Capnocytophaga Bartonella henselae