Aeromonas Flashcards
gram
respiration
shape
habitat
opportunistic?
zoonotic?
gram negative
facultative anaerobe
rod
aquatic organism, freshwater (fish ponds and tanks)
normal flora of freshwater fish – opportunistic
zoonotic potential
different species
a hydrophila
a salmonicida
a hydrophila
motility
temperature
hosts
opportunistic?
motile
mesophilic
human pathogen
normal flora in fish – opportunistic pathogen
a hydrophila – human disease
diarrhea, septicemia, wound infections (swimming in infected water)
a hydrophila – fish disease
hemorrhagic septicemia
skin lesions
a salmonicida
motility
temperature
hosts
non motile
psychrophile
fish pathogen
a salmonicida – fish disease
salmon killer
furunculosis in salmonids – salmon, trout
ulcer disease in goldfish
virulence
type I and IV pili
flagella (a hydrophila only)
exotoxins
hemolysins
enterotoxins
T3SS, T6SS
biofilm – quorum sensing
host immune resistance – capsule, S layer
diagnosis of a hydrophila
blood agar
catalase
oxidase
size of colonies
motility
hemolytic on blood agar
catalase positive
oxidase positive
large colonies
motile
diagnosis of salmonicida
blood agar
catalase
oxidase
colony size
motility
hemolytic on blood agar
catalase positive
oxidase positive
small colonies
non motile
treatment
antibiotics
rehydration
can you treat with penicillins
no
resistant to penicillin, ampicillin, carbenicillin, ticarcillin
B lactamase production
