Most of us have received vaccinations or “shots,” and most of us have watched our horses get theirs, but how many of us really understand how these vaccines work? Why are some vaccines administered annually whereas others are administered more frequently in at-risk horses? How do these vaccines provide protection against disease?

A vaccine is a medically prepared product intended to stimulate active protection against disease. In essence, a vaccine tricks the horse’s immune system into thinking that a pathogenic virus or bacterium is attempting to infect the horse. This free report provides the horse owner and caretaker with a basic explanation of how a horse’s immune system works and responds to invading disease-causing microorganisms.