A 12-year-old girl from Australia and her mother are the first people to try an experimental treatment for a deadly virus after the horse of the girl has died from the infection, researchers said examiners on 28 May.

The virus, called Hendra virus, emerged in Australia in the 1990s and can kill up to 75 percent of people that were infected.

Australian media affirmed that the girl and her mother took the first dose of the drug on Thursday, 27 May.Viruses are carried by a some kind of fruit bat commonly called flying foxes. Current epidemic has caused harsh illness in Malaysia, Singapore, Bangladesh, India and Australia. 

The viruses can cause brain swelling and acute respiratory disease.

The monoclonal antibody attaches to the virus and helps deactivate it. Until this week it had only been experienced in animals, but kept them from becoming ill after they were infected with Nipah.

Geisbert and Australian media said the girl and her mother were not ill but they had  been in a close contact with the horse.

Geisbert also mentioned that was the horse of little girl and it was pretty sick when they put it down. The cure is not licensed but in such conditions unapproved treatment may be used.