EXOTIC DZ Flashcards
neurological disorder affecting cattle
- associated with prions
BSE- bov spongiform encephalopathy
IP of BSE
2-8 years
BSE risk is greater in first __months of life
6
CFR of BSE
100%
classical BSE method of transmission
ingestion
BSE infective tissues to cattle
brain, spinal cord, retina
misfolded proteins
prions
Natural occuring type of BSE in older animals
atypical form
where do prions of BSE replicate?
peyer’s patches
BSE is zoonotic
true
Cows with BSE is seen with Inc sensitivity to touch and sound. what is the term for this?
hyperesthesia
clinical examination methods for BSE
bang
flash
clipboard
stick
confirmation tool for BSE
histopath brain samples
tx for BSE
none
Gold standard for surveillance programs for BSE
immunohistochem
pathognomonic for histopath of BSE
intracytoplasmic vacuolation of neurons and gray matter
CA for enzootic abortion of ewes
Chlamydophila abortus
Enzootic abortion of ewes
- also known as
Chlamydophila abortion, ovine enzootic abortion
- major source of infection of enxootic abortion
vaginal discharge, placenta and aborted fetus
enzootic abortion has this unique type of infection
latent infexn
persistent infection of enzootic abortion occurs in the
reproductive tract
enzootic abortion in ewes causes ___ labor and and ___pregnancy abortion
pre-term
late
necrotic and hemorrhagic cotyledons
* thickened and edematous intercotyledonary areas
enzootic abortion in ewes
CA of johne’s dz
Mycobacterium avium subspecies paratuberculosis
johne;s is widespread in cattle in what country
europe
johne’s dz has high incidence in wjat type of farming system
intensive
common animal infected for johne
cattle
Mycobacterium avium subspecies paratuberculosis is commnly shed via
feces
tx for johne’s
none
CA of nairobi sheep dz
Orthonairovirus
causes a febrile disease in humans
nairobi sheep dz
tick vectors of NSD
brown ear tick (Rhiphicephalus appendiculatus)
* bont tick (Amblyomma variegatum)
Same with BSE as it replicates in peyer’s patches AFTER ingestion
johne’s
if non-pregnants are infected with Johnes this causes ___ infection
latent
activate only during pregnancy and parturition
Primary route of transmission
of johne’s
nursing
t/f johne’s dz can be spread via mechanical vector
T
age risk factor of johne’s
<30days
zoonotic implication of johne’s dz
crohn’s dz - enteritis in humans
clinical stage of johne’s in cattle
3
stage of johne’s
Inapparent Mastitis
Infertility
2
stage of johne’s known as silent infection where shedding occurs
1
johne’s stage 3 is characterized by hemorrhagic diarrhea
false
most obvious stage of johne’s
stage 4
stage of johnes where intermandibular edema occurs
stage 4
