The significance of immunity

What is the significance of Immunity?
Immunity protects the body from injury and infection through several defense mechanisms. This will be our topic of interest beginning next Monday, the 23rd of October. New posts and info thru Friday and what to do about building up yours. You may want to have your friends and family watch and learn and take action just so you don’t have to test yours. Coworkers too, yes. You have to ask so I can send the invitation to you as it is a private group.