You can prevent this disease from spreading throughout your barn. Pay particular attention to the brood mares. Bringing home an infected horse to a farm with brood mares can result in a costly abortion storm and the loss of a year's production.
Vaccination is the essential first step in controlling infectious diseases.
But it only works when vaccines are administered properly. Even when used properly, vaccines have limitations. You need to do more than vaccinate. You must protect your horses from contact with infectious diseases. This concept is known as biosecurity.