Access

concepts

Nature 412, 685-686 (16 August 2001) | doi:10.1038/35089152

Open Innovation Challenges

naturejobs

A purgative mastery

G. J. V. Nossal1

The mammalian immune system possesses extraordinary recognition capabilities. On the one hand, it can react to virtually any molecule in the Universe; on the other, it does not normally attack the body itself.