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Diseases
Attack of the Killer Germs
1996
Do you know an antigen from an antibody? Find out by taking the pre-test. Then you can read more about your immune system and how it is affected by the viruses that cause polio, rubella, flu, MS, and AIDS. Learn the symptoms viruses and how they are spread. Then see if you've learned your B cells from your T cells by taking the final test provided.