Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
Pseudomonas aeruginosa gen
|
Pseudomonas aeruginosa:
- G- rods - most strains prod green pigment - Mac: colorless- greenish - saprophyte - commensal: opportunistic inf |
|
|
Pseudomonas aeruginosa predisposition
|
Pseudomonas aeruginosa predisposition:
1. immunsupression 2. wounds, burns 3. excessive antibiotic use 4. contam sx instruments 5. contam intramammary infusion (bovine) 6. excessive fleece wetting (sheep) 7. ear mites, otitis externa (dogs) 8. dental dz (rabbits) |
|
|
Burkholderia mallei dz
|
Burkholderia mallei= glanders:
- contagious equine dz: USA, Canada free 1. lnn, lungs: nodules, abcesses - slightly green nasal discharge 2. cutaneous form/ Farcy: nodular abcesses along lymph channels 3. humans: inf serious |
|
|
Burkholderia mallei dx, tx
|
Burkholderia mallei:
1. dx: intrapalpebral mallein (DTH) test - swelling of lower eyelid, purulent conjunctival discharge 2. tx: none |
|
|
Actinobacillus ligniersii
|
Actinobacillus lignersii:
- R - wooden tongue: granulomatous lesions, proliferation of fibrous tissue - lesions on hard palate - mineralized "clubs" |
|
|
Actinobacillus equuli dz
|
Actinobacillus equuli:
- sleep foal dz - arthritis, nephritis, enteritis - commensal, opportunistic infection via umbilicus or in utero |
|
|
Actinobacillus equuli tx, control
|
Actinobacillus equuli tx, control:
- IV ceftiofur may help - admin of colostrum to neonates - improve hygiene, naval disinfection |
|
|
Actinobacillus suis dz
|
Actinobacillus suis:
- commensal of adults, infects piglets via umbilicus or skin abrasions - acute septicemia - petechial hemorrhages - pneumonia, meningitis |
|
|
Actinobacillus suis tx, control
|
Actinobacillus suis tx, control:
- ampicillin, TMS - autogenous vaccs may help |
|
|
Pseudomonas aeruginosa carnivores
|
Pseudomonas aeruginosa carnivores:
1. otitis externa 2. UTI 3. keratitis 4. pneumonia - eg dog predisposed by autoimmune dz pemphigus: cep/ pred didn't work, enro/ pred recovery after 4 weeks |
|
|
Pseudomonas aeruginosa horses
|
Pseudomonas aeruginosa horses:
1. genital tract inf eg endometritis 2. ulcerative keratitis 3. burn infection |
|
|
Pseudomonas aeruginosa sheep
|
Pseudomonas aeruginosa sheep:
- fleece rot/ green wool dz |
|
|
Pseudomonas aeruginosa milk
|
Pseudomonas aeruginosa mink:
1. hemorrhagic pneumonia: frothy bloody discharge from nose 2. septicemia |
|
|
Pseudomonas aeruginosa rabbit
|
Pseudomonas aeruginosa rabbit:
- blue fur dz: moist dermatitis |
|
|
Pseudomonas aeruginosa captive snakes
|
Pseudomonas aeruginosa captive snakes:
- necrotic stomatitis |
|
|
Pseudomonas aeruginosa pathogenesis
|
Pseudomonas aeruginosa pathogenesis:
1. colonization of damaged epithelium: pili, capsule, slime 2. tissue damage: protease, elastase, exotoxin 3. local lesion 4. invasion: endotoxin, exotoxin A 5. systemic toxicity |
|
|
Pseudomonas aeruginosa dx
|
Pseudomonas aeruginosa dx:
- culture: 1. characteristic greenish pigment 2. oxidase + |
|
|
Pseudomonas aeruginosa tx, prevention
|
Pseudomonas aeruginosa tx, prevention:
- reduce predisposing factors: ear mites, dental dz - vaccs: mink - antibiotics: resistant to many, gentamycin, amikacin usually - polymyxin topical |
|
|
Moraxella bovis dz
|
Moraxella bovis dz:
- G- coccobacilli - infectious bovine keratoconjunctivits - worldwide, economic loss - transmission via carrier contact - perpetuated with UV rays, tall grass, flies - concurrent viral and mycoplasma inf - photophobia, epiphora, keratitis. conjunctivitis |
|
|
Moraxella bovis pathogenesis
|
Moraxella bovis pathogenesis:
1. adheres to cornea 2. pitting, edema, lymphocytic infiltration 3. sloughing, ulceration 4. photophobia, copious discharge" 2-6 weeks |
|
|
Moraxella bovis virulence
|
Moraxella bovis virulence:
1. pili 2. hemolysin 3. dermonecrotoxin 4. hyaluronidase 5. collagenase |
|
|
Moraxella bovis tx, control
|
Moraxella tx, control:
- pili vacc: pregnant cows - colostral Abs - antibiotics: local Pen, parenteral oxytetracycline - control flies: fly repellant ear tags - isolate infected, eg in barn |
|
|
Brucella gen
|
Brucella:
- zoonotic: all spp except ovis - coccobacilli - enriched media - obligate genital tract org - not saprophyte, but survives outside ~ 6 mo - multiplies intracellularly - chronic inf |
|
|
Brucella spp
|
Brucella spp:
1. abortus: cattle, rarely horses, Canada free 2. suis: pigs 3. mellitensis: small R, serious human inf, USA and Can free 4. canis: dogs, USA and Can low prevalence |
|
|
Brucella pathogenesis in cattle
|
Brucella pathogenesis in cattle:
1. ingestion 2. lymphatics, blood 3. uterus or male genitalia, udder, ln 4. intracellular multiplication: erythritol in gen tissues helps growth 5. a. endometritis, ulceration of uterine epithelium, fetal edema, lung congestion, hemorrhage: late pregnancy abortion b. spread to lung, stomach c. males: orchitis, epididymitis |
|
|
Fistulous wither
|
Fistulous withers:
- Brucella infection - supraspinous bursitis |
|
|
Brucella canis dz
|
Brucella canis dz:
- often asymptomatic 1. lymphadenitis 2. infertility, fetal autolysis (dark vaginal discharge for 4-6 weeks), abortion in late gestation 3. orchitis, scrotal dermatitis, semen abnormalities 4. rarely discospondylitis: lysis of vertebral end plates, proliferation of bone |
|
|
Brucellosis dx
|
Brucellosis dx:
- serology - cattle: card test (Ag canada) - dogs: agglutination rapid slide/ card test - immunoflourescense test - culture: fetal stomach content, lung, placenta, discharge, milk, semer |
|
|
Brucellosis control
|
Brucellosis control:
- serological testing - cattle: calfhood vacc S19 protects 4-5 pregnancies, not Canada - food animals: no tx, cull - dogs: doxy +strep > month, do not breed, no vacc |
|
|
Brucellosis zoonotic
|
Brucellosis zoonotic:
- contact, milk, meat - eg unpasteurized camel meat |
