The Immune System Explained I – Bacteria Infection

  • Published on: 01 July 2014
  • 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 itself for your survival. Without it you would die in no time. This sounds simple but the reality is complex, beautiful and just awesome. An animation of the immune system.

    Support us on Patreon so we can make more videos (and get cool stuff in return):


    The Voice of Kurzgesagt:
    Steve Taylor:

    You can get the MUSIC of the video here:

    Videos, explaining things. Like evolution, time, space, global energy or our existence in this strange universe.
    We are a team of designers, journalists and musicians who want to make science look beautiful. Because it is beautiful.


    Justin Degenaars
    jordan gardner
    Derek Loa
    Jeroen Koerts
    Carlos Campuzano
    Benoît Graham
    Scott Zell
    Tanya Smirnova
    Giovanna Cardoso
    Patrick Eyrich
    Alex Kaplan
    Chris Dudley
    Deanie Adams
    Caroline Andrewes
    Dean Herbert
    Rory Bennett
    Adam Primaeros
    Rasmus Lind
    Daniel O.C.L.
    Dylan Hoffer
    Maxl Heitsch
    Eliud Vasquez
    Neve Laughery
    Ghitea Andrei Paul
    Alexander Law McCormack Heavens
    Eduardo Barbosa
    Sara Shah
    Dario Pagnia
    Chris Doughty
    Evan Low
    Stephen Morse
    Bünyamin Tetik
    Romano Casellini
    dante harper
    Justin T.
    Greeny Liu
    Siddharth Bajaj
    Valerie Brunet
    Peter Wagner
    Efe Melih Polat
    Maximilian Ritter
    Charles Kuang
    Balazs-Hegedus Jozsef
    Petr Pilař
    Finn Edwards
    Thomas Lee
    Daniel Fuchs
    Pascal B.
    Seona Tea
    Pol Lutgen
    Roman Zolotorevich
    Jonathan Velazquez Gore
    Jeff "Church" Churchill
    Randy Knapp
    Brandon Liu
    Peter Žnuderl
    Swarochisha Kandregula
    Javier de la Garza
    Jan Lukas Lehmann

    Why you are still alive - The immune system explained

    Help us caption & translate this video!
  • Runtime : 6:49
  • immune system virus bacteria blood Health Still Live alive life immune antibody Cells macrophage neutrophil dendritic b cell T cell t helper cell complement connection protein antigen lymph node memory cell wound infection evolution body human Pokémon (Video Game Series) one flat design science infographic animation Kurzgesagt medicin Medicine (Field Of Study)


  • MagmaPhoenix
    MagmaPhoenix   19 minuts ago

    Don't die yet, we still need youS P E E C H 1 0 0

  • Mr.mahinasian
    Mr.mahinasian   29 minuts ago

    everytime i tried to explain this to someone they think i am liying or i dont know anything

  • funda313
    funda313   1 hours ago

    SubhanAllah..God is Best of Creaters

  • Elor Azaria67
    Elor Azaria67   10 hours ago

    I think Al Qaeda's members have only Neutrophils in their immune system

  • Malcolmistic
    Malcolmistic   11 hours ago

    here because my health teacher told me to

  • Hels Inki
    Hels Inki   15 hours ago

    This is probably the 10th time I watch this, the immune system is fucking cool.

  • Ian Pey
    Ian Pey   1 days ago

    cells at work intensifies

  • damia syafiqah
    damia syafiqah   1 days ago

    I love the presentation of the video, graphics, musics and everything ❤️

  • Steven zhou
    Steven zhou   1 days ago

    Can you please make a video of the other cells

  • zaianb alrefai
    zaianb alrefai   1 days ago

    جزا الله خيراً من قام بترجمة هذا المقطع المفيد

  • rms monisha
    rms monisha   1 days ago

    all praise due to allah the lord of the worlds.

  • Doctor doodler
    Doctor doodler   1 days ago

    Amazing video and your content is easy to understand.. Keep up the good work

  • nebyu daniel
    nebyu daniel   1 days ago

    Who else is watching this because of the coronavirus

  • Aiden Scott
    Aiden Scott   2 days ago

    Me: gets small innocuous cutBody: WAR WITHOUT END

  • Daniel Hu
    Daniel Hu   2 days ago

    Someone should make a game out of this.

  • Paraguay
    Paraguay   2 days ago

    F in the chat bois for the fighters that keep us from getting sick

  • monckey wrench
    monckey wrench   2 days ago

    So Complex Battle Ground.. Thank God,, he designed us with These Protectors!

  • Najeeb Siddiqui
    Najeeb Siddiqui   2 days ago

    Thank you for the thorough explanation. But all this information makes us wonder, what did we do to deserve this protection? I believe that there is a creator who is constantly showering us with his blessings that we are not even aware of and he is worthy of all the praise.

  • Volkan Birgin
    Volkan Birgin   2 days ago

    Such a beautiful system in our body there must be creator

  • Negius Springfields
    Negius Springfields   2 days ago

    B Cells: "I'm so tired... I'm about to die"Dendritic Cells: "Just don't lol"

  • vortex
    vortex   2 days ago

    i dont feel well today, watching these immune system videos actually helps me. i dont feel alone anymore lol.