Possible Cause of Unusual Neurologic Signs in Australian Horses Identified

Australian authorities might have identified the cause of unusual neurologic signs in horses in New South Wales, Victoria, and South Australia, according to a report from the New Zealand-based website Horsetalk.
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Australian authorities might have identified the cause of unusual neurologic signs in horses in New South Wales, Victoria, and South Australia, according to a report from the New Zealand-based website Horsetalk.

Horsetalk indicated that researchers have found two different types of infection in affected horses: alphavirus infection (i.e., Ross River virus) and flavivirus infections (i.e., Murray Valley encephalitis virus or Kunjin virus).

Both alphaviruses and flaviviruses are arbovirus subtypes, meaning they are spread by mosquitoes.

Biosecurity South Australia (SA) indicated that the company has been actively involved in diagnostic testing and that it has tested or is currently in the process of testing about 100 affected horses

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Written by:

Erica Larson, former news editor for The Horse, holds a degree in journalism with an external specialty in equine science from Michigan State University in East Lansing. A Massachusetts native, she grew up in the saddle and has dabbled in a variety of disciplines including foxhunting, saddle seat, and mounted games. Currently, Erica competes in eventing with her OTTB, Dorado.

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