Equine Viral Arteritis (EVA) Flashcards
what viral family does equine viral arteritis belong to
arterivirdae
what type of virus is EVA
RNA
enveloped
what does EVA cause in horses
respiratory disease and abortion
true or false:
horses are the only host of EVA virus
true
how is EVA transmitted
shed in respiratory secretion of affected horses
where is EVA often transmitted
sales barns
racetracks
what is the impact of infected stallions
long-term shedders
venereal spread
true or false:
mares are also considered long term shedders and can spread the disease
false
mares are not considered long-term shedders but can still spread the virus through direct contact
what are all the ways EVA can be transmitted
stallions - sexual / shedders
mares - shedders / fomites from fetal fluids of aborted fetus / transplacental
what are the clinical signs of EVA
fever
leukopenia
serous nasal discharge
conjunctivitis
purulent ocular discharge
palpebral edema
photophobia
nasal mucosal petechiation
how can EVA present in foals and yearlings
severe respiratory resulting in coughing, dyspnea, and death
where can edema from EVA appear
limbs
ventral abdomen
scrotum
prepuce
what is the incubation period of EVA
3-14 days
what is the spread of EVA through the body
lungs – lymph nodes – blood stream to viremia
what is the best method of choice to diagnose EVA
RT-PCR
