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Prime boost in cattle shows promise in food-animal production

Heterologous prime-boost technology, often referred to simply as “prime boost,” has been widely adopted in the US cattle industry,1 but like any new process, its value needs to be documented before veterinarians in the pork industry are comfortable recommending it, Greg Edwards, DVM, an independent bovine veterinary consultant, told a group of swine veterinarians.

“When we vaccinate, we are trying to increase individual and herd immunity,” he said (Figure 1). “Herd immunity increases with vaccination, and higher herd immunity helps cattle withstand variations in disease pressure.”

There’s a learning curve, according to the consulting dairy veterinarian, but he hopes pork producers can piggy-back on the work that’s already been done in the cattle industry.

The benefits of prime boost boil down to immunity, Edwards said.

According to Edwards, the heterologous prime-boost strategy involves priming the immune system with a target antigen delivered by one vector, route or mechanism and then selectively boosting this immunity by re-administering the antigen in the context of a second and distinct method.2

Click on figure to enlarge.

 

Read the rest of this article and download our Integrated flu management: New strategies for control special report.

 

 

 



1 Cortese VS, Edwards G. Roundtable discussion on prime boost technology. August 2019.
2 Edwards G. Roundtable discussion on prime boost technology. August 2019.

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Heterologous technology known as “prime boost” has been widely used in the US cattle industry, and it is hoped that pork producers can piggy-back on the work that’s already been done in cattle and apply it to influenza and other costly swine viruses.

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Posted on March 9, 2021

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A recent study shows it’s feasible to obtain data on antimicrobial use while keeping information confidential, said Peter Davies, PhD, principal investigator and professor in the College of Veterinary Medicine at the University of Minnesota.

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