Contrary to popular belief, immunization is more than getting a shot from the doctor’s office. So, how does the process of immunization affect your immune system?
In your body, there are white blood cells. These cells have the job of protecting your body from viral infections. When necessary, these white blood cells become a giant army to ward off any unwanted viruses or diseases.
Once a virus has been defeated, some types of white blood cells “remember” the virus, and how to defeat it when it enters the body again.
To create vaccines to a certain disease, scientists use dead or weak strains of the disease. The vaccination gives a body’s white blood cells a “taste” of that specific virus, so they know how to fight it off if that virus ever enters the body.
The vaccine itself does not cause the virus, but it can strongly affect your immune system, because it helps the body fight off certain diseases.
Additionally, by getting vaccinations and living in a community where others get vaccinations, it causes “herd immunity.” This means that members of the community who are too young or too weak to receive that vaccine also receive protection from the disease because it’s unlikely to spread through a group of people who have immunity to the infection.
So immunization isn’t just important for you, but also for the people around you!
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