Unformatted text preview: Particularly if the pathogen is a virus, it will cause the death of the cell anyway. If the cell can be destroyed before a large number of new viruses are produced inside and released, that is to our advantage. 3. D ELAYED HYPERSENSITIVITY T CELLS —these are believed to be a mixture of helper T cells and a few cytotoxic T cells that are involved with certain allergic reactions, such as poison ivy, and with the rejection of transplanted tissue. 4. S UPPRESSOR T CELLS —these are not well understood. Many immunologists believe that these cells turn off the immune response when it is no longer needed. Others think they don’t even exist, and that T H cells and T C cells change and suppress the immune response at the appropriate time....
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- Fall '09
- Bacteria, chemical called, Cytotoxic T cells, CELLS CYTOTOXIC