K-State researchers successfully test first vaccine to prevent bovine anaplasmosis | Livestock | hpj.com

2022-08-14 12:18:43 By : Mr. guan zong

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A recently published study on the urgent need for a bovine anaplasmosis vaccine involved researchers at Kansas State University's College of Veterinary Medicine. (Courtesy photo.)

A new study involving the College of Veterinary Medicine at Kansas State University is paving the way forward in controlling a devastating and costly cattle disease: bovine anaplasmosis.

A recently published study on the urgent need for a bovine anaplasmosis vaccine involved researchers at Kansas State University's College of Veterinary Medicine. (Courtesy photo.)

The research, "Targeted mutagenesis in Anaplasma marginale to define virulence and vaccine development against bovine anaplasmosis," was published in May by scientists from K-State's diagnostic medicine and pathobiology department in PLOS Pathogens, a high-impact scientific journal. Co-authors include a group of scientists from St. George's University in the West Indies, Animal Diseases Research Unit of the U.S. Department of Agriculture in Pullman, Washington, and veterinary researchers from the anatomy and physiology, and clinical sciences departments at K-State.

"Our publication is unique and is the first in addressing the urgent need to develop a vaccine against an important tick-borne disease," said Roman Ganta, the study's senior and corresponding author and the principal investigator of the project. "Currently, there is no effective vaccine in the market, so this effort required innovative approaches in developing a vaccine."

Ganta, a university distinguished professor and director of the Center of Excellence for Vector-Borne Diseases in the College of Veterinary Medicine, said bovine anaplasmosis is a disease with major economic concerns not only in the United States, but around the world.

"Economic impact of the disease is in the billions of dollars of losses annually throughout the world," Ganta said. "The disease can spread rapidly by mechanical transmission routes, besides being transmitted by over 20 different tick species."

Ganta said anaplasmosis is the primary reason many producers feed cattle with the antibiotic supplement chlortetracycline, which has been proven not to be effective.

"We started a major research project in defining the disease throughout California and parts of Missouri and Kansas," Ganta said. "Independent of animals fed with antibiotic supplement, about 50 to 60% of all animals are positive for the disease. Farm practices, however, may make some difference in controlling the disease, but having a good vaccine is the best option for controlling the disease. We are the only research team working on it and developed the first protective vaccine."

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