P36 - Alimentary Part 5 Flashcards
clinical signs of rotavirus infection (5)
- yellowish watery diarrhea
- dehydration
- weakness
- lethargy
- depression
histologic lesions of rotavirus infection
- villous atrophy
primary cause of diarrhea due to rotavirus infection
- malabsorption/maldigestion
- hypersecretory component
which virus has a longer and more severe disease with higher mortality
- rotavirus
- coronavirus
- adenovirus
- coronavirus
what is an important coronavirus in swine production
- transmissible gastroenteritis (TGE)
3 types of colibacillosis (e.coli) disease
- enterotoxigenic (ETEC)
- enterohemorrhagic (EHEC)
- enteropahtogenic (EPEC)
which e. coli is also known as traveler’s diarrhea
- enterotoxigenic (ETEC)
pathogenesis of enterotoxigenic (ETEC)
- uses fimbriae to adhere to intestinal mucosa and secrete enterotoxins -> stimulate cAMP and cAMP pathways within enterocytes -> chloride secretion -> diarrhea
which e. coli is important zoonotic food-borne pathogen
- enterohemorrhagic (EHEC)
what toxin is associated with enterohemorrhagic (EHEC)
- shiga-like toxin (verotoxin)
hemorrhagic colitis and blood in diarrhea can be seen with what type of e. coli
- enterohemorrhagic (EHEC)
pathogenesis of enteropathogenic (EPEC)
- enterocyte brush border is disrupted by attaching e.coli -> loss of brush border leads to villous atrophy and diarrhea
- alters tight junction
which e. coli has dilated and fluid-filled intestines
- enteropathogenic (EPEC)
button ulcers in pigs can be seen with what type of salmonellosis infection
- chronic
T/F: clostridiosis is a natural inhabitant of soils and intestinal tract and is highly contagious
- false - is a natural inhabitant but it is not contagious
which type of clostridium perfringens is associated with pulpy kidney disease in sheep
- type D
which type of clostridium perfringens is associated with diet
- type D
- overeating disease
which type of clostridium perfringens affect very young animals
- type B
- lamb dysentery
- hemorrhagic enteritis of neonatal calves and foals
which type of clostridium perfringens is the most common
- type A
which type of clostridium is associated with Tyzzer’s disease
- clostridium piliforme
which type of clostridium is associated with blackleg
- clostridium chauvoei
which type of clostridium is associated with red water disease
- clostridium hemolyticum
lawsoniasis is most common in what species
- pigs
pathogenesis of lawsoniasis infection
- organism invades into cryptal enterocytes -> proliferation in crypt epithelial cells and thickening of mucosa
clinical signs of lawsoniasis infection
- watery to mucoid diarrhea
- may or may not contain blood, vomiting, anorexia, pyrexia
what is associated with Johne’s disease of cattle
- mycobacterium avium
