Unit 3- Pasteurella

Question 1

Pasteurella

Answer 1

Gram negative coccobacilli, bipolar with wright or giemsa stain, ferment without gas, respiratory colonizers, aerogenes colonizes GI

Question 2

Pasteurella multilocida

Answer 2

Does not grow on MacConkey, prefers blood, indole +, mousy odor, mucoid and smooth colonies encapsulated and virulent

Question 3

P multilocida Diseases

Answer 3

Fowl cholera, hemorrhagic septicemia in ruminant, rhinitis and pneumonia in swine, pnemonia in rabbit, local infection and bite wound in dog cat and human

Question 4

P multilocida Transmission

Answer 4

Carried in oral cavity and respiratory, transmitted by contact, bite, aerosol, water, or endogenous

Question 5

P multilocida Pathogenesis

Answer 5

Normal upper respiratory tract flora, infections follow stress, not normal flora in birds but common pathogen

Question 6

Fowl Cholera

Answer 6

P multilocida A types with hyaluronic acid capsule that do not produce exotoxins, chronic infection of air sacs and mucous membranes due to biofilm

Question 7

Fowl Cholera Clinical Signs

Answer 7

Swollen wattle, depression, cellulitis, diarrhea, biofilm in purulent material, swollen head syndrome, lameness

Question 8

Hemorrhagic Septicemia

Answer 8

B2 and E2 strains of P multilocida in ruminants causes blood in cavities, enteritis, edema, and pneumonia due to exotoxins

Question 9

Shipping Fever

Answer 9

Bovine respiratory disease, type A P. multilocida causes cough, fever, nasal discharge, and bronchopneumonia after stress or mixed infection

Question 10

Bovine Respiratory Disease Complex

Answer 10

Polymicrobial infection with other viruses, mannheimia, histophilus, and mycoplasma

Question 11

Atrophic Rhinitis

Answer 11

Type D P. multilocida produce dermonecrotoxin resorbing turbinates and suppressing osteoid, infected with Bordetella bronchiseptica

Question 12

Atrophic Rhinitis Clinical Signs

Answer 12

Atrophy and deviation of the snout, bloody serous discharge, sneezing, eye discharge, displaced septum

Question 13

Snuffles

Answer 13

P. multilocida infection of rabbits, eye infection, mucopurulent rhinosinusitis, pneumonia, respiratory distress

Question 14

Pasteurellosis

Answer 14

Bite wounds in human causing septicemia, meningitis, and abscess

Question 15

Pasteurella Compromising Factors

Answer 15

Stress, other infection, bite wound, inclement weather

Question 16

P. multilocida Type A

Answer 16

Hyaluronic acid, nonimmunogenic, antiphagocytic capsule associated with disease in cattle, sheep, swine, and fowl

Question 17

P. multilocida Type D

Answer 17

Atropic rhinits

Question 18

P. multilocida Type B and E

Answer 18

Hemorrhagic septicemia

Question 19

Pasteurella Capsules

Answer 19

Carbohydrate, poorly immunogenic, antiphagocytic, nontoxic, protective

Question 20

Pasteurella Adhesins

Answer 20

Fimbriae used in biofilm formation in host cells

Question 21

Pasteurella Siderophores

Answer 21

Obtain iron from the host in low iron conditions

Question 22

Dermonecrotoxin

Answer 22

Cytotoxic and osteolytic, causes resorption of bone in swine snout