Tennessee Horse Positive for Potomac Horse Fever
A Tennessee Walking Horse mare at a private facility in Wayne County, Tennessee, tested positive for Potomac horse fever.

Map of Tennessee highlighting Wayne County
Wikimedia Commons image

On July 25, the Tennessee State Department of Agriculture confirmed that a Tennessee Walking Horse mare in Wayne County had tested positive for Potomac horse fever. The horse presented with fever and diarrhea and resides at a private facility.

EDCC Health Watch is an Equine Network marketing program that utilizes information from the Equine Disease Communication Center (EDCC) to create and disseminate verified equine disease reports. The EDCC is an independent nonprofit organization that is supported by industry donations in order to provide open access to infectious disease information.

About Potomac Horse Fever

Potomac horse fever is caused by Neorickettsia risticii, an organism found in parasites called flukes (flatworms) that infects aquatic snails and insects. Horses can be infected by ingesting insects carrying Potomac horse fever or by drinking water containing N. risticii. Additionally, horses can get Potomac horse fever by inadvertently consuming infected insects or parasites in feed, water or on pasture.

The incubation period for Potomac horse fever is between one and three weeks, and the mortality rate is up to 30%. While vaccines against Potomac horse fever are not 100% effective, vaccinated horses tend to have fewer and less severe clinical signs.

Most Potomac horse fever cases are reported in July through September, and outbreaks tend to be seasonal.

Horse owners and caretakers, especially those who keep their horses near creeks and rivers, should watch for signs including:

  • Diarrhea
  • Colic
  • Loss of appetite
  • Lethargy
  • Toxic shock
  • Dehydration
  • Abortion in pregnant mares
  • Laminitis
  • Mild to severe fever.
Brought to you by Boehringer Ingelheim, The Art of the Horse

categories
tags
Trending Articles
Equine Ultrasound Exam
How To Turn Your Veterinary Equipment Into a Revenue Stream 
A30R9540
Disease Du Jour: Regulatory Veterinary Medicine for Horses 
Young attractive veterinarian standing beside horses on the ranch with copy space
The Business of Practice: Starting Your Own Equine Practice  
madigan-foal-compression-1-min
Madigan Foal Squeeze Technique
Newsletter
Don’t miss an important EDCC Health Alert! Get alerts delivered straight to your inbox by signing up for EquiManagement’s newsletter.

"*" indicates required fields

Name*
Country*

Additional Offers

Untitled
This field is for validation purposes and should be left unchanged.