Study how the immune system helps to protect us against diseases and pathogens such as viruses, bacteria, and parasites.

Illustrated overview of the history of vaccines and inoculations against diseases, such as smallpox and polio.

Basically, the stronger your immune system the healthier you are and, as a consequence, the more protected you are from environmental factors that lead to infection and sickness. If you eat foods that are rich in the nutrients your body...

The human immune system has various ways of responding to an infection caused by bacteria or viruses. Our bodies produce proteins (antibodies) that are highly specific for the infectious agent as a part of our "humoral" immune response....

This site offers a wealth of information regarding HIV and AIDS. Content ranges from basic health information found under "FAQ" to topical information such as the risk of AIDS to teens and home care options.

Online exhibit commemorates the discovery of the polio vaccine. Includes a timelined history of the disease, beginning with the first clinical description of polio by British physician Michael Underwood. Inquiries into the research to...

Government site featuring information on drugs, consumer news, treatments and links to other resources.

This video describes the role of the brain in regulating body temperature and how sometimes fever is employed to fight off infection.

An explanation of how genetic material in Type A flu virus can get shuffled around to create brand new types of viruses.

How does the polio virus cause polio myelitis? An explanation of the polio virus entering the mouth and replicating in the throat and intestines where it then connects to muscles from the neurons of the central nervous system.

Understand the HIV virus that causes AIDS.

An explanation of what the names H1N1 and H3N2 mean and why they are helpful in keeping track of different flu viruses.

An explanation of the three types of influenza viruses (Type A, Type B, and Type C) and what makes them different from one another.

Learn the difference between the cold and the flu, and how viruses can complicate diagnosis.

[Free Registration/Login Required] This flipchart is a Jeopardy game where students will review and discuss the development of the Germ Theory, as well as cell organelles and bacterial and viral diseases.

Presents a detailed history of vaccine science.

A self-paced lesson on infectious diseases including bacterial, fungal, viral, and parasitic infections. Each disease featured discusses symptoms and treatment.

This site is provided for by Access Excellence. Beginning with a good description of the symptoms and spreading of polio, as well as information on Franklin Delano Roosevelt's battle with polio, this article addresses the development of...

A good site which explains the effect of the outside the body environment on the HIV virus. This addresses the common fear of airborne transmission. Original resource from 1999 U. S. Center for Disease Control and Prevention.

A good article on the basics of HIV biology and transmission. The site also tackles the implications of a positive HIV test. Original resource from 2009 HIV Coalition.

Begin here for resources and information on HIV and AIDS.

A good article that supports the evidence that HIV and AIDS have a causal relationship. Links to additional information on this subject. Original resource from 2000 U. S. National Institute of Allergy and Infectious Diseases.

Use this site to learn what polio is and why (and when) you should be vaccinated at this site from the Centers for Disease Control. Also read about the risks and reactions associated with the IPV (Inactivated Polio Vaccine).

[Free Registration/Login may be required to access all resource tools.] In the following tutorial you will learn about the barriers that keep most pathogens out of the human body.