Tag Archives: immunization

The Beautiful Immune System Lesson 2: Protective Immunity

When our bodies become sick with a virus, bacteria, fungi, parasite, etc., our adaptive immune system, the one that “remembers” microbes, not only fights off the microbe but creates protective immunity against it.

Protective immunity is the body’s ability to resist a certain disease. The body’s source of protective immunity against microbes comes from the antibodies created by B cells, as well as the memories stored in the body’s specialized lymphocytes (B and T cells). By “specialized”, I mean they hold a special memory of the particular microbe the protective immunity is against. Continue reading

How are vaccines made and released to the public?


A vaccine’s main goal is to teach your immune system to recognize and remember a bacteria or virus.
The word “vaccination” means to stimulate the immune system to make antibodies¬†against the bacteria or virus targeted by the vaccine.
“Immunization” is different; it’s used in relation to injecting a person with pre-formed antibodies to a particular disease to make the person immune to it.
These terms are often used interchangeably, and that’s just fine, however it’s important to understand that these are two very different ways of creating immunity to a disease.