Vaccinations Make For A Stronger Immune System
One of the best health innovations humans have had over the decades is the invention of vaccines.
You see, vaccines make use of weakened or dead viruses to trigger an immune response.
The immune system assumes we've contracted something serious when a vaccine enters the body.
It then does its job, sending out white blood cells to contain the weakened invaders and creating antibodies to finish the source of the disease.
These antibodies prevent similar infections by storing a "memory" of the specific virus in its cells.
So the next time you acquire a particular virus, say influenza, and you have received a prior flu vaccination, your immune system will already have the information needed to fight off the virus and the antibodies to destroy it quickly.
Granted, there's still a low chance that you'll get sick from a flu virus, but it will be a weaker form, and you can rest easy that you won't experience the most dangerous effects.