When you were young during outbreaks of chickenpox, I guess you must have heard that children who contracted the disease never got it twice?
In this article, I’m going to explain in simple terms how your body immune system works to enable you to articulate how vaccines act, this is going to be quite interesting.
Your body has a military (immune system) with white blood cells (soldiers) that defend her territory (your body) from enemies or invaders (microorganisms such as bacteria, viruses, fungi, or even cancerous cells).
When we say you have immunity for example against the chickenpox virus (Varicella-zoster virus) infection, we simply mean your body can successfully fight or prevent the chickenpox virus from invading and infecting you, thus you are protected, but how did it do this is the one million dollar question? Isn’t it.
How your body military system works
Just like the defence system have units and Special Forces, your body immune system is structured similarly, and executes her mission of protection in several ways which include;
Furthermore, on the subsequent attack from a similar enemy, these soldiers attack violently showing no mercy with intent to kill the enemy.
Examples of such body soldiers under this unit are the T lymphocytes and macrophages (large cells that surround, engulf, and digest microorganisms).
Other cells under this unit are the Special detective cells that act like FBI’s, they are the memory T lymphocytes, what they do is to recognize enemies that have attacked in the past, and inform the Combatants, so they prepare towards next time in case the same enemy wants to lay an ambush.
This unit in your body is what protects you from viral infections, fungal infections, and some bacterial infections.
What about for diseases that your body can’t produce weapons that would last for a lifetime, how do you get protected? Here is where humans have developed vaccines to help out, watch out for our next article.
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