A barrel racing horse from Williamson County that attended several events has been diagnosed with EHM.
A horse in York County, Maine, was euthanized due to EHM.
Horses that attended high school rodeo events at Laramie, Rock Springs or Big Piney should be monitored.
An investigation is underway and the horse and on-premises contact animals have been quarantined.
The third confirmed case of EHM at the Orange County facility is in quarantine.
A quarantined barn that had a neurologic case of EHV-1 has had seven additional horses that tested positive for EHV-1 and had fevers, but no neurologic signs.
Barrel horse initially suspected of having rabies was euthanized due to neurologic herpesvirus.
The California facility that houses a neurologic case of equine herpesvirus type 1 also has five horses with fevers that are positive for EHV-1.
A Miniature Mule in Cherokee County, Georgia, was positive for EHV-1 and died of respiratory disease.
A horse in Orange County, California, was confirmed with neurologic herpesvirus.
The first positive EHM case for Michigan in 2018 was diagnosed in Washtenaw County.
Six horses in five counties have tested positive for Eastern equine encephalitis (EEE) in Florida.
Florida is now up to 14 official strangles quarantines in 2018.
Three Maryland farms that had horses present at the EHV-1 premises in Virginia have been placed on "hold."
The Arizona state veterinarian alerted horse owners of a positive EHM cutting horse that had been at South Point Arena in Nevada and a show in the state.
The Office of the Wyoming State Veterinarian has confirmed that all quarantines have been released except the one at the Ag Complex in Wright, which is due to be released on Friday, March 2.
Three barns at The Meadows Racetrack in Pennsylvania remain under EHM quarantine.
Florida officials reported that a premise in Escambia County and two premises in Alachua County were quarantined for equine strangles.
A lead pony at Los Alamitos Race Course in California was euthanized due to neurologic herpesvirus.
A horse barn in Chester County has been quarantined for EHV-1.
A 4-year-old Thoroughbred filly was euthanized due to complications of equine herpesvirus myeloencephalopathy at Belmont Park.