Complete Dictionary of Dreams

by Dr. Mıchael Lennox
A vaccine protects from certain diseases by introducing a small and manageable amount of the infectious agent into the system, creating an immune response that is ultimately protective. In this way, the sensibility being expressed by a vaccine connects to moving toward something in order to build up an ability to tolerate it. In a dream, this symbol suggests that your fears would be best conquered by facing them a little at a time.

The Curious Dreamer’s Dream Dictionary

by Nancy Wagaman
Guarding or strengthening yourself against attack or intrusion.

Protection or insurance.

Preparing for the future.

Preemptive action to avoid a problem later.

A feeling or fear of attack somewhere in your life.

See Injection