Infectious Bovine Rhinotracheitis & Infectious pustular vulvovaginitis Flashcards
what viral family does IBR belong to
herpesviridae
what type of virus is IBR
DNA
enveloped
what virus causes IBR
bovine herpesvirus 1
what are the clinical signs of IBR
fever
depression
anorexia
profuse nasal discharge (serous to mucopurulent)
what part of this disease is hyperemic
nasal mucosa
what are the common clinical signs of IBR
fetid breath
dyspnea
mouth breathing
salivation
deep bronchial cough
how long does IBR last
5-10 days
what can occur at the same time of IBR
unilateral or bilateral conjunctivitis
true or false:
abortion can occur but it is rare and happens in late gestation
true
what is the focal area of IBR
epithelial cell necrosis
true or false:
there is lifelong latent infection and periodic virus shedding with IBR
true
in the aborted fetus due to IBR, what gross lesion might appear
necrotic foci in the liver
what can be used to diagnose IBR
antibody ELISA
PCR
where is IBR of most importance
feedlots
how is IBR controlled
vaccine but do not prevent infection with BHV1
what is the most common genital disease in dairy cows
Infectious Pustular Vulvovaginitis and Balanoposthitis
what are some classic clinical signs of Infectious Pustular Vulvovaginitis and Balanoposthitis
fever
depression
anorexia
cows stand with legs apart
painful frequent micturition
how long does this disease last
4-5 days and heals in 2 weeks
true or false:
many cases go subclinical or unnoticed
true
what is the transmission of dairy cow genital disease
coitus
artificial insemination
true or false:
lifelong latent infection and periodic virus shedding occurs
true
what should be used to diagnose diary cow STD
PCR
Antibody ELISA - confirms infection but cannot determine if animal is currently shedding
what is used to control dairy cow STI
vaccines - do not prevent infection but they reduce incidence
what is the purpose of injecting corticosteroids
used to detect and eliminate carrier bulls used in AI
