viral respiratory disease

Question 1

most common respiratory virus in equine

Answer 1

influenza– H3N8 currently

Question 1

what is unique about transmission of flu vs EHV and EVA

Answer 1

Flu can not do vertical transmission

Question 2

how to ddx an abortion from herpes vs EVA

Answer 2

herpes- late term abortion with NO autolysis

EVA- early to late term abortion with SEVERE autolysis- affects placentation

Question 3

general treatment for respiratory viruses

Answer 3

reduce fever- antiinflam
fix environment
bronchodilators
supportive care- fluids, etc

Question 4

clinical signs of a viral respiratory disease

Answer 4

mucoid nasal discharge, HIGH fever, young horse. +- LN enlargement and edema

Question 5

what are common sequelae to viral infections

Answer 5

bacterial infections
pleuritis
purpura- IM response

Question 6

how do we diagnose viral infections

Answer 6

equine respiratory panel PCR
CBC with neutrophilia and hyperfibrinogenemia

Question 7

how do we feel about vaccines for viral

Answer 7

they dont really work because we need to stimulate cell immunity and vaccines usually stimulate the antibody response.

MLV are the best

Question 8

what is the virus that all foals get but we dont care about it unless the foal is immunocompromised. then they die

Answer 8

equine adenovirus

Question 9

what to remember about EVA vaccine

Answer 9

only vaccinate if breeding to seropositive stallions because the vaccine makes horses test seropositive

Question 10

vax schedule for EHV in brood mares

Answer 10

vax 5, 7, 9, 11 mo gestation

Question 11

describe the pulmonary vascular EHV

Answer 11

virus causes severe pulmonary edema and death. no cure