For microbes fighting viruses, a fast response means a better defense

In battles between germs, the opening shot is often an injection. A virus, intent on infecting a microbe, punctures the cell's protective wall and inserts its own genetic code. New research from The Rockefeller University reveals how microbes act quickly to fend off the incoming threat using CRISPR, a bacterial immune system that also serves as a powerful tool for editing genomes.

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