An effective HIV vaccine is difficult to produce,primarily because

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The variability between strains of HIV and the frequency of mutations makes it difficult to produce a vaccine.HIV infection does not overwhelm the immune system,because it is an immune deficiency.Research is still being conducted to develop a vaccine.Researchers are testing cloned T cells for response to new therapies.Reverse transcriptase is not proven to adhere to the vaccine.

An Effective HIV Vaccine Is Difficult to Produce,primarily Because