Six horses residing in McNair County, Tenn., located in the southwest part of the state, have tested positive for equine infectious anemia (EIA).

State Veterinarian Charles Hatcher, DVM, told The Horse that the initial case was confirmed positive during the first week of March.

"The ensuing epidemiological investigation yielded five more confirmed positive cases tied to the initial case, all in close proximity in McNairy County," he said. "Two premises are quarantined, and the epidemiological investigation is ongoing. No horses have been euthanized as of (March 25).

"It is doubtful that the source of the disease will be discovered," he added

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