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Bact > Test 2- Taylorella > Flashcards

Test 2- Taylorella Flashcards

1
Q

Taylorella species

A

Only 2 species:

  • Taylorella equigenitalis - DONT HAVE TO KNOW
  • (Taylorella asinigenitalis)
  • Nonpathogenic
  • Donkeys
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2
Q

Taylorella equigenitalis

A
  • Gram negative
  • Non-motile
  • Coccobacillus
  • Facultative anaerobic
  • Obligate symbiotic
  • Obligate pathogenic
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3
Q

Taylorella equigenitalis host

A

Horses

Male:

  • Nosymptoms,
  • noimmunity

Female:

  • Contagious Equine Metritis(CEM),
  • immunity

• Notifiable/ Reportable

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4
Q

CEM: Contagious Equine Metritis

A
  • Metritis
  • Acute suppurative
  • Self limiting
  • Temporary sterility
  • Highly contagious
  • Become asymptomatic carriers

• Immunity

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5
Q
A

Taylorella equigenitalis

CEM: Contagious Equine Metritis

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6
Q

Taylorella equigenitalis

Virulence factors

A
  • Capsule
  • Cell wall LPS
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7
Q

Taylorella equigenitalis

Environmental resistance

A
  • Environmental resistance
  • Poor- max 2 days in fridge
  • Care with keeping samples for diagnosis
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8
Q

Taylorella equigenitalis

Epidemiology

A
  • Exclusively in equine genital tract
  • Control by regular sampling of breeding stallions

• STD

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9
Q

Taylorella equigenitalis

Pathogenesis (mares)

A
  • Not very well described
  • Spontaneous healing within several weeks
  • Temporary infertility (recovery)
  • Few abortions
  • May cause infection of newborns (asymptomatic)
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10
Q

Taylorella equigenitalis

Diagnosis in stallions

A

• Sampling (control)

    1. Stallions
  • Preputium
  • Urethra
  • Fossaglandis
  • Sinus urethralis
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11
Q
A

Take sample from:

Fossa Glandis

Sinus urethralis

urethra

preputium

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12
Q

Taylorella equigenitalis

Diagnosis

• 2. Mares

A
  1. Mares
  • Sampling (control)
  • Fossa clitoridis
  • Sinus clitoridis
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13
Q
A
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14
Q

Taylorella equigenitalis

Diagnosis

A
  • Amies charcoal transport medium
  • Reach the lab in less than 24h !!
  • Culture
  • Specific selective agar including Streptomycin, clindamycin or trimethoprim • Long incubation (1 week)
  • Capnophilic
  • Plates difficult to read (contaminants)
  • Specialist work
  • Small colonies that do not have very specific characteristics
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15
Q
A

Taylorella asinigenitalis

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16
Q
A

Taylorella equigenitalis

17
Q

Taylorella equigenitalis

Diagnosis

• Identification

A

Identification

  • PCR
  • Biochemical testing
18
Q

Taylorella equigenitalis

Prevention

A

Elimination of positive animals from breeding

Vaccination:

  • Bacterins
  • Do not prevent infection
  • Reduce severity
19
Q

Taylorella equigenitalis

Treatment

A
  • Uterine infection
  • Intrauterine and systemic application of antibiotics
  • Not always very successful
  • No elimination of bacteria

Bact (34 decks)

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