Immune system is a form of immunity that exists in human body to fight against pathogen attacks from outside the body, such as viruses, bacteria and fungi.
When the human body get to a virus, our body cells will recognize and learn the virus/pathogen. After our body detect the pathogen, the body will respond, they will immediately attack the pathogen.
Vaccines are special injections that help protect us from getting sick by making our bodies stronger against certain diseases.
How Does Vaccines Protect Us?
Vaccines help the body fight diseases by teaching the immune system how to recognize and fight germs. When you get a vaccine, your body makes special cells called memory cells that remember how to fight the germ if it comes back. This is how the body prepares to respond to a disease before actually getting infected.
Did you know that our immune system learns the viruses that we were exposed to, when we are sick?
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