THE HUMAN immune system is filled with surprises. Although it has lengthy been identified that the physique’s inside defences spring into motion when an infection-causing intruder—reminiscent of a bacterium or virus—is detected, a brand new examine revealed 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 advanced of organic methods and assist the event of remedies for immune problems.
