Quigley Anti-Viral Compound QR448(a) Successfully Prevents Transmission of Infectious Bronchitis i...(ultsto improve its potential commercial ...),Health

Dr. Richard Rosenbloom Executive VP and COO of Quigley Pharma stated: "In addition to observing the positive effects of preventing transmission of a particularly challenging viral isolate, these results have also demonstrated that the QR448(a) compound can effectively be applied to a larger population of birds and in an environment that closely resembles a commercial scale."

Dr. Mark Jackwood Professor, Department of Population Health, College of Veterinary Medicine, University of Georgia, who conducted the study, stated: "By demonstrating the ability of QR448(a) to significantly decrease transmission of Arkansas vaccine virus, this experiment directly addresses an extremely important problem of persistence of this isolate in commercial broiler flocks and the potential for managing a real industry problem by limiting persistence and reducing outbreaks. This work also shows that QR448(a) is effective against a different IBV serotype, indicating that it has the potential to control all infectious bronchitis viruses regardless of virus type. In addition, spray treatment of QR448(a) is fast, extremely easy, and suitable for mass delivery of the compound to thousands of commercial birds."

About the Study:

-- Two colonies of 120 two week old commercial broiler chickens were housed

in 8' X 8' colony houses. Twenty birds from each colony were

identified and infected with a full dose of the commercially available

Arkansas type IBV vaccine virus and isolated for 2 hours. Due to

safety, exposure and handling concerns of IBV in a large scale

experiment, Arkansas type vaccine virus was recognized as a comparable

surrogate for this investigation. The infected birds were reintroduced

to their colony after which time one colony of birds were spray treated

with 1ml of a 1:20 dilution of QR448(a) and th
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