The reason there’s no vaccine for HIV/AIDS, the National Institutes of Health explains, is because HIV has “unique ways of evading the immune system, and the human body seems incapable of mounting an effective immune response against it.” A recently published animal study further clarifies the problem by showing how vaccines designed to protect against HIV backfire, leading to an increase, not decrease, in new infections. Specifically, it is the higher number of activated CD4+ T cells which may be a possible cause for spiking rates of new infection among those already vaccinated. “The virus infects the very cells of the immune system that any vaccine is supposed to [activate],” Dr. Guido Silvestri, senior author and chief of microbiology and immunology at Yerkes National Primate Research Center, stated in a press release . The vaccines meant to prevent disease seem to make the target larger and therefore easier to hit. Killer Cells and The...
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