Aeromonas, Vibrio, Campylobacter Flashcards
Aeromonas majorly effect what group of animals?
Aquatic and marine bacteria-fish pathogens
Characteristics of Aeromonas
Hemolytic, facultative anaerobes, some motile, grey colonies on blood agar, can grow at lower temps and like cooler temps in watery environments
Aeromonas Affects what species and does what
Fish, reptiles, and sometimes mammals
Red leg in frogs
Mouth rot/necrotic stomatitis in snakes and reptiles
Hemorrhagic septicemia and ulcers in fish
Neonatal septicemia, mastitis, diarrhea, abortion in mammals
Is Aeromonas Zoonotic?
Kinda- food poisoning, infections of wounds and septicemia in immunocomprimised but not sure if same strain that makes fish sick
Aeromonas Virulence
Opportunistic pathogen with stress big factor Hemolysis- break down blood Hyaluronidase- tissue damage Collagenase- collagen degradation Phospholipases to break down fat All together liquifies tissue
Vibrio characteristics
Need high salt for growth, catalase positive, facultative anaerobes, most are motile, lower temps
Vibrio cholarae infects
Humans
01 types- cholera- rice water diarrhea
Non 01- causes diarrhea- fish and shellfish
Vibrio parahaemolyticus and V. vulnificus infects what and does?
Septicemia and wound infections and food poisoning in humans. Also associated with water/fish (seafood food poisoning)
Especially in compromised host
Listonella aka vibrio anguillarum infect what and causes what?
Skin necrosis disease in saltwater eels and fish
Photobacterium does what
Bioluminescence in fish
Are vibrio organisms zoonotic?
yes for fish accommodated ones- V. parahaemolyticus and V. vulnificus and Cholera is an environmental problem
Campylobacter characteristics
Motile by sheathed flagellum with wet, spreading/smearing colonies
Microaerophilic (special cultures needed)
Campylobacter is found where
In intestinal tract of mammals and birds and aquatic environment
Campylobacter fetus Causes what in what
Endometritis and abortions
Infection in bull penis
Campylobacter Fetus diagnosis
Culture fetal stomach contents of aborted fetus
Campylobacter fetus ssp. fetus causes what in what
Abortions in cattle and sheep and risk for abortions and premature labor in humans and also aneurysms
Campylobacter hyointestinalis causes what in what
Swine proliferative enteritis
Tissue of gut becomes necrotic and thickened with hemorrhage in pigs
Campylobacter jejuni causes what in what
Diarrhea in dogs, cats, foals, and humans and winter dysentery? in adult cattle
Campylobacter jejuni is normal flora in what
Cattle, sheep, pigs, poultry, wild animals, and in streams and fresh water
Is Campylobacter jejuni zoonotic
Yes
Campylobacter jejuni is linked to what in regards to puppies
Diarrhea in puppies from puppy mills and pet stores
Other things that look like Campylobacter jejuni and how do you tell difference
E. Coli or salmonella
Jejuni had gull wing shape on smears on stained fecal smear
Gullain- Barre syndrome is what and causes by what
Flaccid paralysis- acute demyelination’s neuropathy
Causes by Campylobacteriosis and often after a recent history of enteritis, often seen in college aged males (can’t cook)
Campylobacter hepaticus causes what in what
Slow down production of eggs in birds
Degeneration of liver but mortality low
Disappeared in 60s but coming back again
What is the discovery void
The time since 1987 when no antibiotics have been created.
