Horses can have a latent virus but not show clinical signs and be called clinically normal, except the PCR results will give positive test result when it’s not so straightforward The one other downfall of PCR is that there is not standardized protocols between the laboratories. Once an EHM (suspect) case has been identified, recording rectal temperatures twice daily of the general equine population should be mandatory. Maintain separate tools for infected and exposed stalls: separate brooms, shovels, pitchforks, and wheel barrows. Unfortunately, there is no cure for the equine herpes virus. The Microbac Laboratories, Inc., Microbiotest Division offers efficacy testing for antimicrobial and disinfectant products against a wide range of microbial and viral agents, including EHV-1. Vaccination only protects horses for about six months, so vets recommend frequent revaccination of at-risk horses. PCR can be used to look for virus antigen in the blood stream.

PBMC were either left untreated or stimulated with concanavalin A (ConA) at a concentration of 5 μg per ml (2). EHV-1 is not transmissible to people; it can be a serious equine disease that can cause respiratory and neurological clinical signs; it can even result in death. Dr. Right now, while there are vaccines for EHV-1, there is no effective vaccine for EHM, the neurologic form. Frampton Jr., N. Things like stress or a different illness can cause EHV-1 to be reactivated. should I be practicing to minimize the risk of spreading EHV-1?


The animal health division of the Wisconsin Department of Agriculture, Trade and Consumer Protection has been updating veterinarians to be watchful for horses showing acute neurological signs with a reminder that confirmed positive test results for EHV must be reported within 10 days to the Division of Animal Health at the Wisconsin Department of Agriculture, Trade and Consumer Protection. Furthermore, the HSV-1 proteins have been shown to be interdependent for intracellular localization (6, 7, 9). It is delivered into the host cell by incoming virus particles (33). Fever may be the only abnormality observed. Therefore, the use of this technology as a screening tool for EHV-1 in clinically normal, nonexposed horses is considered inappropriate. When the virus infected Ginger and Spice, it killed her the same morning that Bennett first saw serious symptoms. The latter is usually characterized by a paralysis of the hind limbs and the organs that are innervated by the lumbar nerves (e.g., the bladder).

Implementing basic biosecurity measures are key to preventing the spread of EHV-1, according to Dr. Serious cases of the disease are rare, but can include staggering, hind-end paralysis and even death of the horse. It was determined that she had been stabled near horses that had attended the high school equestrian event. The ministry urged horse owners to be vigilant for signs of disease and to contact their veterinarian if concerned, saying several exotic diseases can also cause neurological signs in horses. The goal of vaccination is to boost immunity in order to control respiratory disease or abortion resulting from of EHV-1 infection. Our study has shown that (i) EHV-1 has developed in evolution a predisposition for respiratory mucosa and EHV-3 for vaginal mucosa, (ii) abortigenic EHV-1 replicates better in vaginal mucosa than neuropathogenic EHV-1 and (iii) EHV-3 demonstrated a strict epithelial tropism whereas EHV-1 in addition hijacked MC to invade the lamina propria. Confirmation of a diagnosis in alpacas and llamas can be difficult since they do not seem to shed as much virus in nasal secretions or have virus in the blood like horses.

The Equine Disease Communication Center (EDCC) reported that Jan. EHV-1 can spread through direct, horse-to-horse contact, as well as by indirect contact with contaminated materials. Colorado, which has two confirmed cases of the virus, is now requiring permits for any horses being brought into the state. All of the horses that have died or are being treated for EHV-1 have been vaccinated for Rhinopneumonitis, but the strain going around is actually immune to the vaccine, making it particularly dangerous. In a statement to El Paso news channel KVIA, Rick Baugh, general manager of Sunland Park Racetrack, said the track would postpone live racing for an initial period of 14 days, in the interest of the horses’ safety. From the initial work done on EHV-1 cases in Alberta by the Government Epidemiologist, Dr. Understanding how EHV-1 is transmitted between horses is key to understanding how to slow or stop disease outbreaks.

Discuss preventative bio-security measures prior to your rodeo. PRV and BHV-1 together with EHV-1 and Varicella-zoster virus form the Varicellovirus genus within the Alphaherpesvirinae subfamily (30). After one horse competing at a Marion County showgrounds tested positive for the Equine Herpes Virus last month, the Florida Department of Agriculture and Consumer Servicesplaced the showgorunds and several Florida farms under quarantine. When a horse is first infected with a new strain of the herpesviruses, the organisms penetrate the cells that line his respiratory system, sparking an inflammatory response.