For North Dakota ranchers keeping a healthy herd is vital,
which is why there is so much concern over a life threatening herpes virus in horses.
It's name-- Equine Herpes virus 1.
The virus is transferred through animal to animal contact or nasal moisture.
It's something like a common cold in humans,
and could potentially become dangerous if it morphs into serious neurological damage.
(Russell Behm, Veterinarian) "There are medications that are quite expensive, that are anti-viral, more used in human beings that are capable of being given to horses that have benefit at helping to get the disease under control. Earlier treatment is effective, but they are quite costly."
The best line of defense remains to be a strict quarantine of the infected horses from the healthy ones.