Students study the five major body system in this unit. They examine how to keep themselves healthy.

Outstanding reference in Spanish and English for illnesses, disease, immunization and other health-related issues. Most of the Spanish links tied to its menu have English counterparts.

An interactive, self-guided lesson on the function of the human immune system and how medical intervention prevents disease. This lesson has many descriptive animations as well as graphs and diagrams to help with understanding. There is...

[Free Registration/Login may be required to access all resource tools.] Find out the details of how scientists have found methods to control the spread of viruses.

The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to protect him from the related (and deadly) smallpox virus. But how does...

Seth Berkley explains how smart advances in vaccine design, production and distribution are bringing us closer than ever to eliminating a host of global threats- from AIDS to malaria to flu pandemics. [21:06]

[Free Registration/Login may be required to access all resource tools.] Is giving shots to young children a good thing? Many, if not most, children hated going to the doctor, as it often meant getting a shot. Why? The shot actually...

[Free Registration/Login may be required to access all resource tools.] Discusses immunity and the differences between active and passive immunity.

This lesson will explain how vaccines can be used to assist the body in producing antibodies towards certain diseases. It is 3 of 10 in the series titled "Vaccines."

[Free Registration/Login may be required to access all resource tools.] Most B and T cells die after an infection has been brought under control. But some of them survive for many years. These long-lasting B and T cells are called memory...

[Free Registration/Login may be required to access all resource tools.] Describes how viruses can be controlled by vaccines and antiviral drugs.