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43 Cards in this Set
- Front
- Back
Klebsiella are commensal opportunists T/F
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T
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A prominent hyper-mucoid capsule contributes to Klebsiella's virulence T/F
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T complement, phagocy evasion
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The capsule of klebsiella targets epithelial cells where
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urinary n respiratory tracts
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the endotoxin Lipid A causes what pathologies?
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fever, neutropenia, petechia, shock
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Klebsiella enterotoxin is similar to E coli ____ toxin
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stable toxin (ST) - causes fluid loss from epithelial cells
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Case fatality from bovine mastitis by Klebsiella is as high as
Environmental factors for transmission |
80%
moist bedding, trauma from malfunctioning milking machine |
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Apart from vaginitis, Klebsiella can cause what in equines?
How is it transmitted? |
infertility, metritis, abortion
stallions, fomites, vaginal speculum |
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What is navel ill in equines?
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septicemia, septic arthritis
pneumonia pyelonephritis (renal pelvis) productive omphalitits (pus from navel) common with failed passive transfer of Ab |
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Klebsiella in dogs cause
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pyometra, cystitis, prostatitis, enteritis, mastitis
pneumonia meningoencephalitis hepatic abscessation |
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Klebsiella in pet birds cause
In reptiles? In humans? |
respiratory infections
septicemia diarrhea pneumonia, hypopyon (pus inside eye) UTI (nosocomial) |
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klebsiella hyper-mucoid capsule causes virulence in Green Vervets how?
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resistant to oxidative killing
adherence, uptake, survival inside, and killing of monocytes |
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This species of Pasteurella causes septicemia and pneumonia in sheep.
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Bibersteinia trehalosi
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P. multocida causes pneumonia in these animals
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ruminants
swine lab animals |
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T/F Mannheimia hemolytica causes septicemia and pneumonia in cattle
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F, not septicemia
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Name 1 type of adhesin and 3 capsule proteins found in host tissues expressed by Pasteurella/Mannheimia.
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fibrinogen-binding proteins (protect against C and Abs)
hyaluronic acid heparin chondroitin |
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Name 2 siderophores of Pasteurella/Mannheimia
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Multicidin in P. multocida
OMP - binds to transferrin, heme, hemoglobin |
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Leukotoxin, an RTX toxin, is produced by what species?
What does it cause? |
M. hemolytica, B. trehalosi
kills WBCs, RBCs drives a tissue destructive inflamm response (tox granules, cytokines) |
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Dermonecrotizing toxin of P. multocida type D responsible for atrophic rhinitis in swine
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PMT (a Rho-activating toxin -> incr intracellular Ca)
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Probably role of the Pasteurella/Mannheimia hyaluronidase, neuraminidase toxins
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aid in colonisation
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Why are Pasteurella/Mannheimia so resistant?
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P. multocida survives for mos in bird carcasses
R plasmid They have multiple capsular and somatic serotypes |
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What are ways of transmission for Pasteurella/Mannheimia?
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inhalation, ingestion, bites, scratchwounds (e.g. if animal had licked paws)
endogenous infection |
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Where are endogenous Pasteurella/Mannheimia found?
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mucous membranes in oropharyngeal region
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What are the 3 general pathogenic manifestations of Pasteurella/Mannheimia?
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respiratory tract
septicemia trauma associated |
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Give examples of respiratory pathology in swine and cattle for Pasteurella/Mannheimia
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Cattle: commensal bact from URT infect lungs -> pneumonia -> intense inflam response (MØ, NØ, fibin deposition, RBCs) due to leukotoxin, LPS, iron-scavening prots -> red/pink/grey with abscess formation
Swine: PMT destroys nasal tissue chronic rhinitis (disturbed osteogenesis) |
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Give examples of septicemic pathology in ruminant and avian for Pasteurella/Mannheimia
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Pasteurella species: capsule, OMP, iron-scavening prot -> endotoxemia
Cattle: hemorr septicemia Sheep: septicemia Avian: cholera |
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Give examples of trauma associated pathology for Pasteurella/Mannheimia
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Mouth bacteria associated (Pasteurella)
bite wounds licking wounds NØ involvement |
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What's shipping fever?
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extremely important diseases accounting for 30% of cattle deaths worldwide
fibrinous pleuropneumonia or bronchopneumonia by M. hemolytica mainly, also P. multocida caused by stress, concurrent infections etc 1-2 wks after stress -> fever, nasal discharge, cough, death |
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Hemorrhagic septicemia (by P. multocida) in cattle is common in the tropics. Give some causes and symptoms.
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drastic weather changes, malnutrition, overcrowding
fever, subq edema, hypersalivation, diarrhea, sudden death |
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Mastitis in cattle (M. hemolytica mainly, also P. multocida) has high mortality and is characterized by
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severe necrosis
hemorrhages systemic implications |
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Mastitis in ovine/caprine (M. hemolytica, B. trehalosis) has high mortality and is characterized by
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necrosis (blue bag) that may slough, usually in late lactation
acute systemic rxn |
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Septicemia in lambs is caused by M. hemolytica and B. trehalosis and resembles
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bovine hemorrhagic septicemia
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What disease in sheep resembles bovine shipping fever commonly presenting with nasal mucus discharge and lung necrosis with bloody, purulent secretions?
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enzootic pneumonia by M. hemolytica
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Chronic atrophic rhinitis with secondary fibrous pneumonia in swine is caused by which 2 bact?
Affects pigs younger than |
Bordetella bronchoseptica (mainly) and Pasteruella multocida
7 mos |
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What are the most important bact diseases in rabbits?
What can it cause? What can trigger? |
respiratory aka "snuffles" (P. multocida)
mucopurulent rhinosinusitis sometimes conjunctivitis, metritis, otitis media, neurologic, abscesses in lungs and skin pregnancy, lactation, stress |
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Orchitis, balanoposthitis, and pyometra are genital diseases that are caused by ________ in rabbits
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Pasteurella multocida
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How is fowl cholera (turkey, chicken, waterfowl) transmitted?
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by ingestion or inhalation of P. multocida
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What are the differences b/w per-acute, acute, sub-acute, and chronic fowl cholera?
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per-acute: 60% mortality, few signs
acute: 30% mort, anorexia, sluggish, nasal/ocular discharge, diarrhea sub-acute: respiratory, mucopurulent nasal discharge chronic: suppurative and caseous lesions in various places |
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What can Pasteurella cause in dogs and cats?
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mouth-related conditions (infected wounds, foreign bodies)
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Equine respiratory infection with P. caballi is usually associated with
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Streptoc equi
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What dz does P. multocida cause in rodents and humans?
How transmission to humans? |
opportunistic pneumonia in rodents
local (skin) or generalized such as respiratory bites scratches |
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What vaccines are available for Pasteurella/Mannheimia prevention?
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bovine hemorrh septicemia vaccine - effective
avian - inconsistent swine - effective bacterins containing toxoid for atrophic rhinitis |
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What is a biochemical difference b/w Pasteurella and Mannheimia?
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Pasteurella ferment D-mannose, Mannheimia do not
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T/F V factor-dependent Pasteurella grows better on chocolate agar
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T
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