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](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/06/060217_TI_nose-immune-cells_main_free.jpg?fit=860%2C460&ssl=1)
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.
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