Dr. Rand Paul here with some vaccine sanity. Yes, they can save lives, but the protection probably isn't as strong or as long-lasting as if you get the disease(s) "in the wild". Oh, and if you did get the disease(s) "in the wild", the vaccines might have a different effect on you from if you haven't.

Dr. Rand Paul here with some vaccine sanity. Yes, they can save lives, but the protection probably isn't as strong as if you get the disease(s) "in the wild". Oh, and if you did get the disease(s) "in the wild", the vaccines might have a different effect on you from if you haven't.