EDCC Reports EHM Death in California
On April 28, 2017, 15-year-old Warmblood mare in Sacramento County, California, displaying severe neurologic signs was confirmed positive for equine herpesvirus type 1 (EHV-1).


The Equine Disease Communication Center (EDCC) offers alerts about equine diseases that have been confirmed by reliable sources. The following information is from the EDCC.

EHM Death in Sacramento County, California

On April 28, 2017, 15-year-old Warmblood mare in Sacramento County, California, displaying severe neurologic signs was confirmed positive for equine herpesvirus type 1 (EHV-1). The mare initially showed signs of colic on Friday April 21 and was transported to a veterinary clinic for veterinary care. While in isolation at the veterinary clinic, the mare started displaying neurologic signs, became recumbent and was subsequently euthanized. Quarantine was immediately implemented at the home premises. 

Because this horse meets the case definition for an equine herpesvirus myeloencephalopathy (EHM) case, CDFA issued a quarantine for 31 exposed horses which requires implementation of biosecurity measures, including twice-daily temperature taking and clinical observation of the horses. 

No exposed horses have displayed signs of disease. CDFA continues to monitor the situation onsite. 

For more information go to https://www.cdfa.ca.gov/ahfss/animal_health/equine_herpes_virus.html.

About EDCC

The Equine Disease Communication Center works to protect horses and the horse industry from the threat of infectious diseases in North America. The communication system is designed to seek and report real time information about disease outbreaks similar to how the Centers for Disease Control and Prevention (CDC) alerts the human population about diseases in people.

The goal of the EDCC is to alert the horse industry about disease outbreak information to help mitigate and prevent the spread of disease. Ultimately frequent and accurate information about diseases outbreaks improves horse welfare and helps to prevent negative economic impact that can result from decreased horse use due to a fear of spreading infection. As part of the National Equine Health Plan the EDCC will serve as part of the communication to help educate and promote research about endemic and foreign disease.

Working in cooperation with state animal health officials and the United State Department of Agriculture, the EDCC seeks information about current disease outbreaks from news media, social media, official state reports and veterinary practitioners. Once information is confirmed, it is immediately posted on this website and messages sent to all states and horse organizations by email. Daily updates are posted until each outbreak is contained or deemed no longer a threat.

The EDCC is made possible by generous donations from organizations and horse owners. Please visit our sponsors that have generously supported this program for the benefit of the health and welfare of horses. To learn how you can help go to SUPPORT.

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