Pasteurella multocida Flashcards Preview

Bacteriology Exam 2 > Pasteurella multocida > Flashcards

Flashcards in Pasteurella multocida Deck (5)
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1
Q

specifics

A

gram -ve, obligate symbiotic, little resistant
type A- mucoid –> capsule and hyaluronic acid
obligate path- septicemia in bovine, birds, rabbits
faculative path- rhinitis, pneumonia in pig, bovine, rabbits

2
Q

poutry cs

A

ducks most susceptible
fowl cholera- chicken and turkeys
hyperacute in birds septicemic due to cat bites
acute- sudden death
chronic- chicken- sneezing, nose excretion, edema head

3
Q

virulence factors

A
cell wall 
lps 
iron aquisition by sidephores 
adhesins
capsule
toxin
4
Q

virulence factor- toxin

A

RTX- repeats in toxin - leukotoxin and hemolysis - impairs pulmonary macrophages, inflammation- tissue destruction
Rho activating toxin- pasteurella multocida toxin- PMT
dermonecrotic toxin- DMT
hyaloronidase
neuramidase

5
Q

prev

A

wound dysinfection
AB with fever, stab wound, sx, risk group

biting wound in humans- migrate to regional lymph nodes–> bacteremia/tissue localization