We have good news, and we have bad news. The good news is that the particular flu you were exposed to as a child probably gives you protection from several flu strains as an adult. The bad news is that it doesn't protect against all the others, and this makes it really hard to make a universal flu vaccine.
Your Birth Year May Affect Your Resistance To Bird Flu
Hear about how the year you were born could make or break your survival during a bird flu pandemic.
Influenza and Vaccines: How Do They Work?
The National Science Foundation explains what influenza even is, and how vaccines can help you prevent it.
The Immune System Explained
Take an overhead view of how your immune system fights off infection.
Key Facts In This Video
See the specific jobs of the cells of your immune system, and the complex ways they interact with each other: 00:17
When killer T-cells go through their training process, only a quarter survives. 03:17
Billions of antibodies flood into infections, disabling by bacteria by latching onto them. 05:15
Wake up with the smartest email in your inbox.
Our Best Articles Daily