Two Massachusetts horses test positive for strangles

The highly infectious bacterial disease spreads through direct contact, making biosecurity crucial in preventing outbreaks.

Microscopic image of EHV virus

Ventura County, California barn under quarantine after mare with neurologic signs tests positive for EHV-1

32 horses are potentially exposed, but no new cases have been identified.

Horse looking out of stall

Facility in Pierce County, Washington under quarantine due to equine influenza

This is the eighth facility in the state to quarantine due to the virus in two months.

A horse racing around a a barrel

Farm in Washington State quarantined due to equine influenza

Vaccination and biosecurity measures can help protect horses who travel as well as those they may infect when they return home.

Strangles can be passed from horse to horse by direct contact.

Oregon horse with strangles may have exposed others

Forty potentially infected horses may have moved back to other parts of Multnomah or Clackamas county.