Crash Course Biology Season 2 Episode 39
How Do Vaccines Work?: Viruses & Vaccines
Returning Series
13 min
8.9/10 Votes: 23
From the flu to COVID-19, viruses are a major threat in our everyday lives. In today’s episode of Crash Course Biology, we’ll learn why viruses are like genes in a box, and how they invade and spread between cells. We’ll also discover how vaccines and medicines help our bodies fight back.