Understanding Vaccination Programs (Timing is Everything)

Vaccination of your lambs and ewes is one of the more common, yet least understood health management practices performed by Michigan sheep producers each year. In talking with producers it is obvious that some producers vaccinate their flock for “everything”, while others choose a more conservative approach to immunology. However, regardless of your conservative or radical approach to vaccination practices, producers should understand how your basic vaccination program affects the immune status of your flock. Understanding some very basic vaccine terminology and science will also prevent wasted dollars and inadequate protection of your flock.