In the May 2013 news analysis “Antimicrobials stage a comeback” (Nat. Biotechnol. 31, 379–382, 2013), the Italian company researching the use of novel antibiotics was erroneously identified as NeED Pharmaceuticals. The company's name is NAICONS. The error has been corrected in the PDF and HTML versions of this article.

In the May 2013 news analysis “Footrace to clinic heats up for T-cell nuclear receptor inhibitors” (Nat. Biotechnol. 31, 370, 2012) Gary Glick's affiliation was given incorrectly. He is at the University of Michigan, Ann Arbor, not at the University of Wisconsin, Madison. The error has been corrected in the PDF and HTML versions of this article.