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Flashcards in Actinobacillus (Ex2) Deck (16)
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1
Q

Actinobacillus pleuropneumoniae general features

A
  • very important disease in swine rearing

- younger pigs (

2
Q

Actinobacillus pleuropneumoniae virulence factors

A
  • adhesion: fimbriae
  • XXX: Fe necessary
  • exotoxins: Apx toxins
  • capsule
  • LPS
  • OMPs
  • Enzymes
  • heat shock proteins
3
Q

Actinobacillus pleuropneumoniae exotoxins

A
  • RTX: make pores in cells
  • recombinant toxins: lung lesions’
  • 1: strong hemolytic and cytolytic effects
  • 2: weak hemolytic and cytolytic effects
  • 3: strong cytolytic
  • 4: only expressed in vivo, necessary for full virulence
4
Q

Actinobacillus pleuropneumoniae symptoms

A
  • respiratory distress
  • general symptoms
  • hyperacute: death
  • acute: coughing, blood
  • fibrinous pleuritis, hemorrhagic nectrotizing pneumonia
  • adhesive pleuritis
5
Q

Actinobacillus pleuropneumoniae Diagnosis

A
  • culture: samples need to be fast in lab, not resistant in environment
  • slow grower
  • NAD dependent
  • CO2 enriched media
6
Q

Actinobacillus pleuropneumoniae treatment

A
  • hygiene
  • antimicrobials: not much resistance
  • vaccine: best with Apx, TBP, and type 4 fimbriae
7
Q

Actinobacillus suis general features

A
  • obligate symbiotic
  • facultative pathogenic
  • carriers: tonsils and vagina
  • pathogenic for mice
  • sporadic
8
Q

Actinobacillus suis symptoms

A
  • acute: young animals, mortality
  • less acute: older animals, general symptoms, respiratory distress, polyarthritis
  • Adult: SQ abscesses, anorexia, fever, meningitis
9
Q

Actinobacillus equuli symptoms

A
  • bronchitis, pleuritis, pneumonia
  • foal: septicemia, sleep foal disease, enteritis, slimy pus
  • adult: abortions, septicemia, localization in joints
10
Q

Actinobacillus lignieresii general features

A
  • wooden tongue, timber tongue
  • obligate symbiont
  • facultative pathogen
  • inhabitant of nasopharynx
11
Q

Actinobacillus lignieresii etiology

A
  • contaminated surgical material of vet

- lesions at surgical sites

12
Q

Actinobacillus lignieresii lesions

A
  • mainly tongue

- capsule of connective tissue with multiple granulomas containing yellow pus and sulfur granules

13
Q

Ornithobacterium rhinotracheale predisposing factors

A
  • stress
  • respiratory infections
  • high density
  • ventilation
  • ammonia concentrations
14
Q

Ornithobacterium rhinotracheale symptoms

A
  • sneezing, nose exudate, coughing, depression, swelling sinus, facial edema, anorexia, dyspnea
  • low mortality
15
Q

Ornithobacterium rhinotracheale diagnosis

A
  • bacterial culture: difficult, slow growth, frequently overgrown, needs CO2
  • ELISA
16
Q

Ornithobacterium rhinotracheale treatment

A
  • antibiotics

- high resistance