YouKnow Science — Viruses
What are vaccines and how do they protect you?
![What are vaccines and how do they protect you?](http://cellkultureco.com/cdn/shop/articles/vincent-ghilione-cVaTkeN_xqI-unsplash_{width}x.png?v=1589867316)
In this post I answer commonly asked questions about immunization.
Take the quiz to see what vaccines you may need!
What are viruses, anyway? A break down of the basics.
![What are viruses, anyway? A break down of the basics.](http://cellkultureco.com/cdn/shop/articles/elena-mozhvilo-HRjdJddvPu8-unsplash_{width}x.jpg?v=1588642289)
To continue our discussion on infectious diseases in How to solve a (virtual) outbreak , in this post you'll learn: what viruses are made of, how they're spread, and how they're categorized by scientists.