| Title | : | The Immune System Explained I – Bacteria Infection |
| Duration | : | 6 minutes, 49 seconds |
| Uploader | : | Kurzgesagt – In a Nutshell |
| Added On: | : | 01 July, 2014 |
| Views | : | 53.8M times |
| Likes | : | 0 |
| Source | : | YouTube |
Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itsel
