Persistent immunity: Researchers find signals that preserve anti-viral antibodies

Our immune system is capable of a remarkable feat: the ability to remember infections for years, even decades, after they have first been encountered and defeated. While the antibodies we make last only about a month, we retain the means of making them for a lifetime. Until now, the exact mechanism behind this was poorly understood, but researchers at The Wistar Institute have discovered some of the protein signals responsible for keeping the memory of distant viral infections alive within our bodies.

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