How do vaccines work?
How do vaccines work? (Thinkstock)
How do vaccines work?
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You asked us, how do vaccines work? Well, vaccines are basically a stupendously brilliant way to train ourselves to fight some downright nasty, even deadly diseases.

Let me explain.

When we get sick from viruses or bacteria, our immune system creates weapons that attack the invading germs, but every disease is a little different. So we need to develop unique ammo for each one.

And that can take time, which we don't always have. Some infections work fast and furious, never really giving us a chance to defend ourselves. The results can be deadly.

The genius of vaccines is that they get our bodies to prep defense strategies without us having to actually get sick. Many do it by carrying a weaker or dead version of the germ, just enough to signal to our body to go on the attack, but not so much that an infection flares up.

Our immune system then remembers the strategy for each defense. That way if you ever come face to face with the real thing, we can get the upper hand by quickly pulling together a deadly strike force of our own. Many vaccines provide lifelong protection. And though none is 100% effective, the more people in a population that get vaccinated the more we're able to control diseases.

Thanks to vaccines smallpox is a thing of the past.

Go science!

Go science, it's your birthday. Go science, it's your birthday.

Critical thinking challenge: Why can't our bodies always defend us from every disease?

Source URL: https://www.tweentribune.com/article/tween56/how-do-vaccines-work/

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COMMENTS (104)
  • LaceyK-Kut
    4/29/2015 - 07:37 p.m.

    It's amazing how much a vaccine can do. A small shot can hurt, but only feeling a little pain is better then dying. A small vaccine can save lives, and prevent you from getting deadly diseases. I'd rather feel a small bit of pain for about five seconds rather than feeling tons of pain and the risk of death from a disease.

  • LaurenT-5
    4/29/2015 - 08:11 p.m.

    This article is all about how vaccines work. Many people get vaccines to help fight and prevent dieses in our body an from coming onside our bodies. Our immune systems help stop germs once they enter our body but can't do the same for dieses. That's why we get vaccines shots to help prevent future exposes by maybe getting a weaker or dead disease in our body so it can get used to it and build p to defeat it. Some vaccines are for your whole life, a year and even just a couple of days. Vaccines are not 100%efective but help us out a lot. I thought this article was very interesting. I learned a lot form it.

  • APangaro-1
    4/29/2015 - 08:28 p.m.

    How do vaccines work, you ask? Vaccines are a way to train ourselves to fight nasty, even deadly diseases. All diseases are different, so a unique ammo has to be made for each one. Some infections work very fast, so we never get a chance to defend ourselves. Some results can be deadly. The vaccines help our bodies come up with defense strategies without us having to actually get sick. I think people should keep up on their vaccinations so they can prevent deadly diseases.

  • Eric0221-YYCA
    4/29/2015 - 08:33 p.m.

    I think that the vaccine had made people to become very well, inside the vaccine tube is weak and dead bacteria in it, so if the white blood cells noticed the weak and dead bacteria, the more people get vaccinated, the more memory cells will find the same danger from the vaccine. If the vaccine is super helpful to our body, I think that this might be the big thanks of the polio vaccine which is invented from a doctor in the 20th century which made people from dying from a dreadful disease.
    CTC: Why can't our bodies always defend us from every disease?
    Answer: Our body can't always defend us from every disease when vaccine weren't invented yet so our body can't defend us from deadly disease from a long time ago.

  • CarolineS5
    4/29/2015 - 09:56 p.m.

    : Why can't our bodies always defend us from every disease?
    Our body can't always defend us form every disease because we are already sick and the sickness can spread around really fast.

  • CarolineS5
    4/29/2015 - 09:56 p.m.

    : Why can't our bodies always defend us from every disease?
    Our body can't always defend us form every disease because we are already sick and the sickness can spread around really fast.

  • CarolineS5
    4/29/2015 - 09:56 p.m.

    : Why can't our bodies always defend us from every disease?
    Our body can't always defend us form every disease because we are already sick and the sickness can spread around really fast.

  • JacquelynS-3
    4/30/2015 - 01:01 a.m.

    When we get sick, our immune system creates weapons to attack the invading germs, but every disease is a little different. Scientists develop unique ammo for each one. This can take time, which we don't always have. Some infections come on fast, never really giving us a chance to defend ourselves. The genius of vaccines is that they get our bodies to prep defense strategies without us actually having to get sick. Many vaccines provide lifelong protection.

    This article was very interesting and informative. I know a lot more about vaccines than I did before.

  • LilyE-4
    4/30/2015 - 02:38 a.m.

    A lot of humans in fortunate circumstances get vaccines. In America, a majority take them. But do you know exactly how a vaccine works? Well, now you can. Our body has an immune system that creates special weapons to fight harmful or even deadly germs and viruses. However, creating those defenses can take time, and that time period may be enough for diseases to attack our body and get us sick. So, vaccines are a weakened or dead form of the virus. Once we inject that germ, the virus is weakened and therefore takes longer to activate its harmful affects to the body. In return, the immune system can destroy that virus, and gain the proper immune defenses to fight a full virus if it comes. I am grateful for such a system, so I won't get sick as often as I would without vaccines.

  • CameronK-3
    4/30/2015 - 02:41 a.m.

    Vaccines help ourselves train for invasions of deadly diseases. If we become ill from a certain virus or bacteria, our immune system keeps a record of what to do for each sickness. Some diseases work so quickly, we just don't have enough time to fight it off. So, what a vaccine does is it gives a person the dead or weak version of a germ, and our bodies fight it off and keep a record of what to do in that situation. I found this article interesting because I didn't quite know how a vaccine works.

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