Science Behind: Vaccines

Now that it’s officially flu season, it's time for the flu shot season as well.

Vaccines are commonplace in society today, and have almost eradicated a number of diseases that wiped out hundreds of people centuries ago. But, how are vaccines able to do this? Well, it has everything to do with your immune system. Once you get a disease, you can never get that same variant again.

Well, vaccines do that same thing without the risk of being sick. Vaccines contain microbes of a disease, which then travels to your lymph nodes - which decode the vaccine and teach your immune system to fight against it, and protects you from getting that variant of disease again!

So, next time you get a vaccine, this is the science behind it!

https://publichealth.jhu.edu/2025/the-biology-of-vaccines