Determining the endpoint of an outbreak of equine influenza in a large population of racing Thoroughbreds.

The research studied the spread of equine influenza in a large population of racehorses and aimed to assist in identifying when the disease spread ends, to help in resuming the racing events.

Objective of the Research

• The main aim of this study was to determine when an outbreak of the equine influenza (EI) ends in a large population of Thoroughbred horses so that horse-racing events can be resumed.

Background

• Equine Influenza (EI) is a highly infectious disease of the respiratory system, primarily affecting horses. It often causes extensive disruption to the racing industry as infected horses need ample recovery time.

Methodology

• The researchers used a natural setting where EI was introduced to a large population of Thoroughbred horses stabled at a racecourse in Sydney, Australia.
• This provided a live environment to observe and record the clinical signs, as well as monitor the disease’s spreading pattern within this predominantly naïve population.

Research Purpose and Impact

• By studying EI’s progression and determining the endpoint of its spread, the research is designed to assist in the resumption of racing activities with minimal disruption.
• This research also has broader implications for understanding and managing any highly infectious disease spread in large animal populations.