Types of Vaccines

Five vaccines. Five different ways to teach the immune system. In this episode we walk through every vaccine type you need to know for Step 1. Live attenuated, killed and inactivated, subunit, toxoid, and mRNA. What each one actually is, how it works, which diseases it covers, and the catch that comes with it. Plus the mnemonics that make them stick, the classification traps that show up on questions, and the reason all five exist instead of just one.