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How bacteria store information to kill viruses (but not themselves)

Researchers from the School of Arts & Sciences have discovered that the balance between fighting viruses and avoiding autoimmunity has a key role in shaping how bacteria ‘remember’ old infections.
A microscope image of a group of phages
A group of bacteriophages, viruses that infect bacteria, imaged using transmission electron microscopy. New research sheds light on how bacteria fight off these invaders without triggering an autoimmune response. (Image: ZEISS Microscopy, CC BY-NC-ND 2.0)

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