Nemours KidsHealth: How Your Immune System Works

Name: How Your Immune System Works
Uploaded: 2014-09-24T18:20:14Z
Duration: 7 min 26 s
Description: When you get sick, your immune system comes to the rescue. Find out more in this movie for kids.

When you get sick, your immune system comes to the rescue. Find out more in this movie for kids.