The horse had recently resided in both Maricopa and Pinal Counties, and 28 horses are now exposed.

The horse lived in Riverside County, where nine additional horses are exposed.

An Arabian cross gelding in Palm Beach County, Florida, tested positive for strangles and is currently affected and alive.

The horse resides in Simcoe County and is now recovering.

The horse lived in Los Angeles County, where 61 additional horses are exposed.

EHM has been detected in Johnson County and Van Zandt County.

A horse in Terry County, Texas, was euthanized after testing positive for EIA.

One horse in Miami-Dade County, Florida, has tested positive for strangles, and 30 horses are exposed.

No additional cases of EHM have been reported at the barn in San Luis Obispo County since a horse tested positive in February.

One horse is positive for strangles at a boarding barn in Oxford County, and 40 horses are exposed.

A horse in Marion County is positive for strangles, and two other cases are suspected.

The horse resides in Ponoka County.

There have been no additional cases of EHV-1 at the racetrack in Maricopa County, Arizona, since the index case in February.

The horse resides in Pierce County, where 4 additional cases are suspected.

The sick horse lives in Gem County, where 6 additional cases are suspected and 25 horses are exposed.

Two additional horses at a barn in Bay County have tested positive for strangles, bringing the total number of cases to seven.