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Cellular Immunity and HIV Vaccines, continued
Another strategy is to destroy the cells that have been infected by the virus. To do this, scientists try to design products that would stimulate the body to produce immune cells called CTLs that will attack and destroy virus-infected cells.
- Unlike some other viruses, HIV can be transmitted and can exist in the body in two forms: free viruses and virus-infected cells. So, a vaccine against HIV may be required to stimulate both neutralizing antibodies and CTLs.
- It is difficult to design a single product that can do both, so scientists are also combining two or more different products in order to achieve this goal. Of course, it is also possible that a third immune response is the key to protection against HIV.
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