Revised:  05/22/2008

Memo for October 25, 2006













New Jersey Department of Agriculture



To: Veterinarians

From: Nancy E. Halpern, D.V.M., State Veterinarian

Date: October 25, 2006

Re: EHV-1 Update



     While awaiting the test results on the EHV-1 suspect horses at Monmouth Park, the New Jersey Department of Agriculture (NJDA) is making the following recommendations:


     1. All equine veterinarians need to take universal precautions until EHV-1 is either diagnosed or ruled out and the extent of potential exposure is identified. If the horses at Monmouth Park are positive for EHV-1, meeting will be held by NJDA at a central location on Friday October 27, 2006, to review clinical signs, testing, etc. The meeting time and location will be announced.


     2. The following measures should be implemented immediately:

  • Any horse displaying clinical signs of EHV-1, including fever, respiratory or neurologic signs should be isolated immediately from other horses and will be placed under quarantine by the NJDA. Contact NJDA at (609) 292-3965 if you have a horse suspect of infection with EHV-1.
  • Horses being held in quarantine barns should have their rectal temperature taken 3 times a day.
  • Other clinically normal horses on the premise should have their rectal temperature taken 2 times a day.
  • Horses exposed to a horse with clinical signs should be tested for EHV-1, 7 days after the onset of clinical signs in the affected horse. Samples to be collected for EHV-1 testing include blood in 2-3 EDTA (purple top tube) and nasopharyngeal swabs. The New Jersey Animal Health Diagnostic Laboratory is in the process of obtaining the capabilities to conduct EHV-1 testing. In the meantime, please contact the University of Kentucky Livestock Disease Diagnostic Center at (859) 253-0571ext. 163, for swabbing and sample submission protocol for EHV-1 testing.
  • Personal and equipment biosecurity is key as the virus can spread easily via fomites. The virus can last in the environment from one week to several weeks under ideal conditions. Separate personnel and equipment should be used for horses in the quarantine barn. Washing of hands and equipment shall be performed between handling horses.
  • Quarantine will be maintained for a minimum of 21 days after the last suspected new infection.
     3. Racing will continue at the Meadowlands with the following requirements:

  • All horses shall have their rectal temperature taken before shipping to the Meadowlands - those horses with a temperature above 101.0 F may not ship to the track.
  • All horses shall have their rectal temperature taken before racing - those horses with a temperature above 101.0 F will not be permitted to race and will be quarantined at the Meadowlands until found to be free of disease.
  • Horses shipping to the Meadowlands from Monmouth Park must be held in barns separate from all other inships. The only commingling of these horses should occur during the races.
  • All starting gates and equipment shall be disinfected between races.
  • Ponies must stay with inships or with Monmouth Park horses and cannot be shared between the groups.
  • Inship horses SHALL NOT return to Monmouth Park for quarantine as adding naïve horses to the quarantined population may extend the quarantine period.
  • All vans/shuttles/trailers shall be cleaned and disinfected before leaving Monmouth Park for the Meadowlands and when leaving the Meadowlands.






 Search this site


 News and Features


Health Notices

Ask the Expert

Make a Gift

For the Love of Horses

Ryders Lane farm

Equine Science 4 Kids!


Alumni News

Horse Management Course

Equine Scholarships at SEBS

Young Horse Teaching and Research Program


If Adobe Acrobat Reader 5 or greater is not already installed in your computer you may download it for free.
Please follow the link below.

Download Acrobat™ reader







© 2009 Rutgers, The State University of New Jersey
Items may be reprinted with permission from the
Director of the Equine Science Center:

The Equine Science Center is a unit of
Rutgers New Jersey Agricultural Experiment Station.