Strangles is a serious contagious disease of horses and donkeys caused by the bacterium Streptococcus equi equi.

Infection occurs when susceptible horses have direct contact with infected horses or indirect contact with things contaminated by infected horses such as stables and bedding, feed or water utensils, tack, transport vehicles, and hands or clothing.

Generally strangles is mostly seen in young horses but it can also infect older horses.

Outbreaks sometimes occur when large numbers of horses are held in close contact.

Topics include:

  • diagnosis
  • treatment and horse welfare
  • preventing spread to other horses on your property
  • reducing the risk of introducing strangles to your property
  • is strangles notifiable?


Primefact 648 Fourth Edition

Published: 01 May 2014