New Jersey quarantines Burlington County horse property after EHV-1 case

New Jersey has quarantined a Burlington County equine property after one horse tested positive for equine herpesvirus-1 associated with equine herpes myeloencephalopathy, the neurologic form of the infection. The case was highlighted by EDCC Health Watch and detailed by the New Jersey Department of Agriculture, which said the affected horse developed acute clinical signs on April 1, 2026, and was hospitalized for care. The horse was identified in state reporting as a 17-year-old warmblood gelding, while industry coverage described it as an 18-year-old Oldenburg gelding. (nj.gov, equimanagement.com)

The case adds to a year in which Burlington County has already seen at least one earlier EHV-related event. State officials said there are no known connections between this case and the county’s first case in January 2026, suggesting this is not currently being treated as part of a single linked outbreak. EDCC Health Watch, which disseminates verified equine disease reports using information from the Equine Disease Communication Center, has become a key distribution channel for these alerts. The EDCC is an independent nonprofit supported by industry donations and focused on open access to equine infectious disease information. (nj.gov, equimanagement.com)

The core facts are straightforward, but important for practitioners. The New Jersey Department of Agriculture said 26 remaining horses on the premises are under quarantine and being monitored, and that no recent horse movement had occurred, making the immediate risk of spread from this herd low. Some industry coverage described 18 exposed horses on the premises under quarantine, but the operational message is the same: exposed horses are being watched closely on a locked-down property. The department described EHM as the often-deadly neurologic form of EHV-1 and reminded clinicians and horse facilities that signs can include fever, nasal discharge, depression, cough, and enlarged lymph nodes, with neurologic cases progressing to incoordination, hind-end weakness or paralysis, and bladder or tail dysfunction. EquiManagement’s backgrounder also emphasized that fever may be the first or only sign of infection, that EHV-1 can also cause rhinopneumonitis in young horses and abortion in broodmares, and that abortions may occur weeks to months after infection, often late in gestation. The disease is reportable in New Jersey, and the state laboratory said it is available to assist veterinarians with testing. (nj.gov, equimanagement.com)

Industry coverage of the alert has been consistent on the main operational points: one affected gelding, a quarantined Burlington County property, and a limited immediate spread risk because the herd had not recently moved. Practical Horseman’s EDCC Health Watch coverage also reiterated a point many equine practitioners already know but pet parents may not: current EHV-1 vaccines may reduce viral shedding, but they are not protective against the neurologic form of disease. EquiManagement similarly stressed that routine biosecurity practices remain the best way to minimize spread. AAEP’s infectious disease guidance likewise frames biosecurity, case isolation, and movement restrictions as the backbone of control when EHV-1 is suspected or confirmed. (practicalhorseman.com, equimanagement.com)

That matters because EHV-1 response is often less about a single patient than about the exposed population around it. APHIS notes that the virus can spread through nose-to-nose contact, contaminated equipment, shared buckets and tack, and respiratory secretions in stalls and stables. EquiManagement’s summary adds another practical reminder: people can also move the virus on clothing, hands, and equipment after contact with an infectious horse. In practice, that means veterinarians are often advising on barn traffic, temperature monitoring, testing strategy, isolation logistics, and communication with trainers, facilities, and pet parents, all while managing a potentially unstable neurologic patient. (aphis.usda.gov, equimanagement.com)

For veterinary professionals, the Burlington County case is a useful reminder that even when officials describe the broader spread risk as low, the on-farm consequences are still significant. A single neurologic EHV-1 case can halt horse movement, disrupt competition and training schedules, increase diagnostic demand, and create pressure for clear client communication about what vaccination can and cannot do. It also reinforces the importance of having a practiced biosecurity plan before a case appears, not after, including routine hygiene, cleaning, and disinfection measures that should already be in place. (nj.gov, equimanagement.com)

What to watch: The next signals will be whether any of the exposed horses develop fever, respiratory illness, or neurologic signs, whether additional testing identifies more infected animals, and how long quarantine remains in place before New Jersey declares the premises cleared. (nj.gov, equimanagement.com)