In order to estimate the numnber of horses living in Virginia by age breed and locality CSR acquired electronic and paper records of Coggins tests in Virginia. These records provided a sampling frame for a survey of 5 600 horse owners. There were 2 804 respondents. A subsequent survey of veterinarians informed estimates of Coggins test rates by seven regions of Virginia. The data were weighted up to produce the estimated numbers of horses.
A sample of 5600 owners drawn from records for horses tested for Equine Infectious Anemia
James Ellis & Tom Guterbock
Virginia Horse Industry Board