Lab 8- Pasteurella

Question 1

Habitat

Answer 1

Mucous membranes, respiratory tract

Question 2

Morphology

Answer 2

0,5-2 um coccoid rods

Middle sized

Question 3

Staining

Answer 3

Gram negative
Bipolar staining

Can produce capsule !
Virulence factor

Question 4

Culture

Answer 4

Fastidious

Yeast, extract, blood, serum

Ph-susceptibility
Colony types : M,S-R

Smell: “common cold”

Medium always have to alkaline

Question 5

Biochem

Answer 5

Catalase +
Oxidase -
Fermentative
Cytotoxin production

Question 6

Antigens

Answer 6

P. Multocida - cell wall
16 (Heddleston system(in use today, vaccines)), 11 (Namioka system(not so wide spread))

Capsule:
A,B,C,D,E,F

Question 7

Resistance

Answer 7

Weak

Question 8

Subspecies

Answer 8

P. Multocida A, B,E,D

P. Pneumotropica 
P. Aerogenes 
P. Canis
P. Dagmatis 
P. Stomatis 
P. Caballi

Question 9

P. Multocida A+D cause ?

Answer 9

Ruminants, swine =pneumonia
Rabbit = septicaemia, pneumonia
Fowl= cholera

Question 10

P. Multocida D cause?

Answer 10

Swine= Atropic rhinitis (destruction of ecto- endo turbines)

Question 11

P. Multocida B + E cause?

Answer 11

Mainly cattle= haemorrhagic septicaemia

Question 12

P. Pneumotropica cause?

Answer 12

Lab rodents= pneumonia

Dog+cat= oral cavity

Question 13

P. Aerogenes cause?

Answer 13

Swine= abortion, alimentary tract

Question 14

P. Canis, p. Dagmatis + p. Stomatis cause ?

Answer 14

Dog+ cat= oral cavity, bite

Question 15

P. Caballi cause?

Answer 15

Horse= respiratory infection