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IBR VIRUS IN THE DAIRY HERD  
IBR VIRUS IN THE DAIRY HERD

(Infectious Bovine Rhinotracheitis) - (IBR) Pneumonia in Dairy Cattle

Infectious Bovine Rhinotracheitis (IBR) is a viral disease of cattle. It is highly infectious and can cause significant economic losses on dairy farms. IBR virus is the fourth most common respiratory pathogen, occurring in 30% of pneumonia cases. IBR is caused by Bovine Herpes Virus 1 and like all herpes viruses can result in a latent viral infection such as the common 'cold sore' which will recur throughout a person’s life. Stress can reactivate the infection in a herd and cause new infections.

Transmission of IBR virus can be directly from other animals or indirectly through farm visitors. IBR can present with the characteristic runny nose, a high fever, sudden milk drop and/or abortions. Recent research has indicated that vaccinating affected dairy cows for IBR will improve production, highlighting that latent infection impairs performance.

BOVILIS IBR and Rispoval IBR attack the IBR virus which is often found in older animals. IBR virus is the fourth most common respiratory pathogen, occurring in 30% of pneumonia cases. 

Pneumonia is a complex disease. It can be caused by viruses (RSV and PI3) and bacteria (Pasteurella) and husbandry factors can contribute. Farm husbandry can contribute to the spread of pneumonia. This has made it difficult to devise a vaccination regime at reasonable cost.

BOVIPAST RSP, a vaccine which protects animals against the most widespread respiratory pathogens: RSV, PI3 and Pasteurella haemolytica (bacterial infection usually represents the greatest threat to calves).

Rispoval 3 covers RSV, PI3, Pasteurella and BVD.

During an outbreak of pneumonia, BOVILIS IBR and Rispoval IBR can be given by intranasal administration giving protection within 48 hours. It can also be given by intramuscular injection but this has a 7 day onset of action. This can be ideal for a disease which is frequently a whole herd problem.

To vaccinate in an effort to prevent an outbreak an inactivated IBR Marker vaccine such as Rispoval IBR Marker inactive or Bovilis IBR Marker inactive (see table)

Vaccine

 

Manufacturer

 

Shots

 

Effective against

 

Vaccine

 

Route

 

Course

 

Onset

 

Face

 

 

 

 classification

 

/course 

 

IBR 

 

type 

 

of admin 

 

 

 

of cover 

 

of infection 

 

Bovilis

 

 

 

 

a

 

 

 

 

 

 

 

 

 

 

 

IBR marker inactive

 

Intervet

 

 

POM(E)* 

 

one

 

 

 

Killed

 

i/m

 

2x2 ml 4 week intervals

 

3 weeks

 

Healthy only

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bovilis

 

Intervet

 

 

 

a

 

 

 

intranasal

 

2 weeks old

 

4 days

 

 

IBR marker live

 

 

 

two

 

 

 

Live

 

i/m

 

revac at 3 months,1 shot

 

14 days

 

Yes

 

 

 

 POM(E)

 

 

 

 

 

 

 

 

 

pre 3months & 1 after

 

 

 

 

Rispoval

 

Pfizer

 

two

 

a

 

Killed

 

subcut

 

2 x 2ml 3-5 weeks apart

 

 

 

 

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