It May Be Possible To Prevent HIV Even Without a Vaccine

TIME

Natural immunity is the most reliable way to protect yourself from viruses, bacteria and parasites. And the best way to acquire such immunity, in most cases, is to expose your immune system to the bug in question—either by getting infected or getting immunized.

Until now, such protection was only possible with diseases like chicken pox or polio. But now, scientists at Harvard University say that people might soon arm themselves against HIV in a similar way, but through a different method.

Chad Cowan and Derrick Rossi, both in the department of stem cell and regenerative biology at Harvard University, and their colleagues report in the journal Cell Stem Cell that they have successfully edited the genomes of blood cells to make them impervious to HIV. In order survive, HIV needs to insert its genome into that of a healthy cell, and to infect these cells, HIV latches onto a protein…

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