THE HUMAN immune system is stuffed with surprises. Although it has lengthy been identified that the physique’s inside defences spring into motion when an infection-causing intruder—resembling a bacterium or virus—is detected, a brand new research printed in Nature Neuroscience means that the mere sight of an an infection could also be sufficient to kick the immune system into gear. The findings might reframe scientists’ understanding of this most complicated of organic techniques and support the event of therapies for immune problems.











