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When it comes to the flu, the nose has a long memory

In mice, immune cells in nasal tissue remembered — and attacked — past invaders

girl sneezing

NOSE GUARD  Following a bout of the flu, the nose makes specialized immune cells that can protect against the illness, a new study in mice suggests.

YAKOBCHUK VIACHESLAV/Shutterstock

By Tina Hesman Saey

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