A group of illustrated tutorials and self-test questions is an interactive online resource for learning immunology, developed at the University of Arizona. Aimed primarily at students the tutorials and problem sets are grouped under the headings: Introduction to Immunology (including basic concepts about the immune system); Antibody Structure (examining how the physical structure of antibodies determines their interaction with antigens); HIV and AIDS (considering the interaction of HIV with the immune system and how treatments interrupt the HIV lifecycle; and Case Studies with accompanying self-test questions. http://www.biology.arizona.edu/immunology/immunology.html
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