Don't lose your points!
Sign up and save them.
+
Vaccines

Vaccines

Rating:
Rating
(0)
Description:

This lesson will describe how a vaccine can be used to prevent certain diseases.

(more)
See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

28 Sophia partners guarantee credit transfer.

281 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 25 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial
Terms to Know
Active Immunity

Also known as specific immunity, active immunity is carried out by T & B lymphocytes and reacts to specific antigens of cells; active immunity also produces memory cells to target the same pathogen if we are ever exposed to it again.

Antigen

A unique marker that has the potential to stimulate an immune response; antigens are basically the identity marker of cells for the immune system to see.

Booster Shot

Not every vaccine has lifelong effects, so when antibody levels decline after a certain period of time a booster shot is given to bring the back up again.

Vaccine

A therapy that involves injecting an augmented/altered pathogen into a person to induce active immunity; vaccines prepare a person for when they are naturally exposed to specific pathogens by stimulating them to already have the proper antibodies and memory cells in their systems.