Biosecurity Queensland has received initial test results on samples taken from 25 horses at the Cawarral horse nursery. All of the results were clear except for one horse, which showed a positive result for Hendra virus infection from the blood sample test.

The results are from one of the four horses that were tested yesterday when they were showing slightly elevated temperatures–at which time their nasal swab mucus samples were clear.

Today’s positive result from the blood sample test was a surprise, as the initial results were negative.

The horse with the positive result will be re-tested to confirm the presence of the virus, with those results expected early next week. In the meantime the horse and any in-contact horses will remain isolated on the quarantined property at Cawarral