Infectious Bovine Rhinotracheitis

Question 1

IBR is caused by

Answer 1

bovine herpesvirus 1, also called “red nose”

Question 2

bedies rhinotracheitis, bovine herpesvirus 1 also causes what?

Answer 2

pustular vulvovaginitis

Question 3

why shouldnt you give a preggo cow a modified live herpesvirus vaccine?

Answer 3

it can cause abortion

Question 4

what are the 6 forms of disease for IBR?

Answer 4

respiratory
abortion
ocular
infectious pustular vulvovaginitis
neonatal infection
encephalitis

Question 5

small white plaques in nares are indicative of

Answer 5

IBR, respiratory/red nose

Question 6

how to tell IBK from IBR in terms of ocular disease

Answer 6

with IBR there is severe conjunctivitis and lots of clear ocular discharge with corneal opacity, making the surrounding eye look crusty

Question 7

what are clinical signs of pustular vulvovaginitis?

Answer 7

vulvar discharge, red spots and pustules lining vulva and vagina, tail twitching, frequent urination,

Question 8

IBR usually causes abortions when during gestation?

Answer 8

5-6 months

Question 9

where are typical lesions in neonatal death caused by IBR?

Answer 9

respiratory, GI, liver, kidney, adrenals

Question 10

how should IBR be prevented?

Answer 10

isolate new additions for 30 days

isolate sick animals

use intranasal or IM live vaccines in adult feedlot cattle