Vaccines teach the immune system to recognize what particular pathogens look like, so that it can respond more quickly and effectively if those pathogens are ever encountered in real life. Like any other teaching exercise, repeating the lesson helps it to sink in and establish a stronger memory. Vaccines are the same, so revaccinating or boosting strengthens the immune memory. Listen to learn more!

Relevant Links: 

Vaccines: Use as Directed (article)

Bull Valuation Calculator (interactive tool)

Vaccination of the Beef Herd (webpage)

Understanding the Five W's of Beef Cattle Injection (article)

Injection Techniques Best Practices for Beef Cattle (pamphlet)