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Species/Subspecies: Pasteurella multocida subsp. multocida
Etymology: Genus name: named after Louis Pasteur.
Species epithet: a lot of killing.
Subspecies epithet: see Species epithet.
Significance:  [Very important]   
Type Strain: ATCC 43137 = CCUG 17976 B och 43504 = NCTC 10322.
Macromorphology (smell):
Pasteurella multocida Pasteurella multocida 
Small mucoid or dry colonies (1-2 mm in diameter). No hemolysis on blood agar, but some strains give a greenish decolorization.
Micromorphology: Small non-motile short rods or coccoid rods (0.3-1.0 x 1.0-2.0 µm), which appear singly, in pairs or as short chains (rarely).
Gram +/Gram -:
Fig. 56:3. Gram staining of Pasteurella multocida subsp. multocida, strain CCUG 224. The field B is a partial magnification (3 times) of A. The length of the scale bar corresponds to 5 µm. Date: 2011-03-22.

Metabolism: Facultatively anaerobic
Other Enzymes: Ornithine decarboxylase +, tryptophanase + (= indole +), urease -.
Biochemical Tests: Citrate -, hydrogen sulphid (H2S) -, methyl red -, Voges-Proskauer -.
Fermentation of carbohydrates:
Other carbohydrates: D-Mannose +.
Gas production: Glucose -.
Spec. Char.:
Hosts: Cattle, rabbit, pig, dog, cat and birds.
Disease (Swedish):Nyssjuka (atrofisk rinit) hos gris. Lunginflammation och luftvägsinfektion hos idisslare, gris och gnagare. Septikemi och mastit hos nötkreatur. Aviär pasteurellos eller fågelkolera (en allvarligare form av aviär pasteurellos) hos fjäderfä (framförallt tamhöns, kalkon, ankor och gäss).
Disease (English):Atrophic rhinitis in pig. Pneumonia in ruminants, pig and rodents. Hemorrhagic septicemia and mastitis in cattle. Avian pasteurellosis or avian cholera (a more serious form of avian pasteurellosis) in poultry (particularly chicken, turkey, ducks and geese).
Clinical Picture:
Virulence Factors: Dermonecrotic toxines of P. multocida subsp. multocida of capsular type A and D, which causes atrophic rhinitis in pig.
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_002663 PM70 2 257 487 1c + 0 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AY078999 NCTC 10322T 1 468 

Comment:Atrophic rhinitis is notifiable in Sweden. Pasteurella infections may be zoonotic and associated with cat bites. Fermentation of D-sorbitol and trehalose can be used for identification of subspecies.

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Swedish University of Agricultural Sciences