By Rachel Snyder
WFAA
The Equine Disease Communication Center reports cases of Equine Herpesvirus Myeloencephalopathy (EHM), a disease caused by EHV-1, have been reported in Texas, Oklahoma, Louisiana, South Dakota, Colorado, New Mexico, Arizona and Washington. Of those, 18 EHM cases have been confirmed in Texas with neurologic signs, seven in Oklahoma, three in Louisiana, one each in South Dakota and Colorado, and three in New Mexico, according to the organization.