Skip to content
  • Print

Signs of Hendra Virus

What are the signs of Hendra virus in horses?

  • Acute onset of illness
  • Fever
  • Nasal discharge
  • Increased breathing and heart rate
  • Lack of appetite
  • Discomfort/weight shifting between legs
  • Head tilt
  • Difficulty breathing
  • Clumsiness or difficulty walking
  • Muscle twitching

If you have observed any of these symptoms or you are concerned about your horse, consult your veterinarian immediately.

What are the signs of Hendra virus in humans? 

  • Fever
  • Cough
  • Sore throat
  • Headache
  • Drowsiness

Humans may begin to show signs of illness within 5 - 21 days of contact with an infected horse.1

If you or your horse-handlers experience any of these symptoms following contact with a suspected or confirmed case of Hendra virus, seek medical attention immediately.

There are currently no known treatments for Hendra virus in horses or humans. Ask your vet about protection with Equivac® HeV.



  1. State of Queensland, Department of Employment, Economic Development and Innovation. Guidelines for veterinarians handling potential Hendra virus infection in horses: Version 4.2 December 2011.
  2. Queensland Government, Department of Agriculture, Fisheries and Forestry. Hendra virus. Information for horse owners, handlers, competitors and event organisers. Available at: (Accessed 02/07/13).