PART 4 Flashcards
Viral dz
Widespread throughout the world
Caused by genus _____ family Retroviridae
similar to CAE
are they lifelong carriers?
Equine infectious anemia
Lentivirus,
yes
mechanical Vectors of EIA
Tabanus and deer flies mainly
Stable flies or stomoxys
stomoxys, horseflies, chrysops
2 countries that has no EIA
iatrogenic transmission is possible in EIA t/f
japan and iceland
t - via contaminated needle since its a bloodborne infexn
Since bloodborne: All body fluids and tissues should be considered potentially infectious
t/f
t
high levels of virus in the blood
fever
EIA usua;;y affects these two
spinal cord, and occasionally the brain
2 neurologic signs of EIA
Lack of coordination
Hindleg weakness
2 test for EIA
Coggins test
Agar gel immunodiffusion test (AGID)
EIA is mainly prevention and no tx t/f
EIA is zoonotic t/f
t
Euthanize to prevent spread
no treatment and vax
F
NON ZOONOTIC
A viral disease
with the other term
“Equine viral rhinopneumonitis”
“Equine abortion virus”
EHV-1 myeloencephalopathy
EHV-1 is latent t/f
t
With or without CS
Appears only when animals subj to stress
tranmission of EHV-1
Nasal secretions
Aborted fetus
placenta
clinical findings in EIA (URSLP)
Urine dribbling
Retention of feces
Sensory deficits in the perineum and tail
Lack of coordination in hind legs
Paralysis
May progress on all 4 legs
EIA prognosis
poor due to prolonged period of recumbency
Hemorrhage around nerves; accumulation of inflammation cells
(diagnosis for EHV-1)
Perivascular cuffing:
4 more ways to diagnose EHV-1
Real-time PCR
Clinical signs
CSF analysis
Or neural tissue after death
necropsy
Virus has a preference for BVs (reprod & nervous system)
BVs in repro tract as well as nervous system
EHV-1
Tx of EHV-1
-Supportive treatment
-Antipyretics
If more than 40C
-Antibiotic
-Valacyclovir
Effectiveness still controversial
(there are reports) Used for prophylaxis esp. During outbreaks
in herpescirus, these drugs are contraindicated
corticosteroids
what dz?
Ribs out
Stretch neck
Tongue out
Biting in the air
rabies
rabies form
(a) distress And agitation
Rolling
Vs colic - more aggressive
(b) Paralysis of jaw and throat muscles
a) furious
b) paralytic
Viral disease
Virus causes inflammation in the spinal cord and brain
rabies
common and indicative of paralysis
Careful when handling since zoonotic
drooping of lower jaw
teartment of rabies
none except euthanasia
