One case of Hendra virus has been confirmed, while an exposed horse has tested negative for the disease in Queensland, Australia. Biosecurity Queensland confirmed the case May 20 and on May 21 reported initial negative tests for the second horse.

The first horse showed acute neurological signs and upon veterinary examination exhibited normal respiratory and heart rates, but was found to be blind, according to the Australian Horse Industry Council. The neurological signs developed into seizures, and the horse was euthanized. Once Hendra virus was confirmed, the second horse on the property was tested, and initial blood samples came back negative.

Biosecurity Queensland reports that the second horse remains quarantined until the period of virus incubation has passed and all tests have returned negative results.

"Biosecurity Queensland community engagement efforts have begun in Tewantin and will continue at surrounding locations over the weekend," said a press release from the organization