An earlier version of the article “New technologies take root in the search for antibiotics from soil” (Nat. Med. 21, 201, 2015) inaccurately stated that researchers have not identified any new molecules using iChip technology. In fact, this technology has found new molecules and genes of interest. The error has been corrected in the HTML and PDF versions of the article.

The version of the “An unknown enemy: Drugs sought against EV-68 as paralysis link is explored” article initially published online on 30 March 2015 (Nat. Med. 10.1038/nm.3846, 2015) failed to note Michael Rossmann's affiliation or the involvement of his collaborators, and it incorrectly placed Emory University in Decatur, Georgia, when in fact it is in Atlanta. The errors have been corrected in the HTML and PDF versions of the article.

In the version of the article “Warren joins lawmakers proposing new ideas for science funding” initially published, (Nat. Med. 21, 299, 2015), the legislation recently introduced by Senator Warren was oversimplified, in a manner that implied it would increase the amounts of fines paid by pharmaceutical companies via settlement agreements with the Department of Justice. Rather than directly affect these settlement amounts, the Medical Innovation Act would also force companies that have entered into settlement agreements with the Department of Justice for breaking federal laws to pay an additional 1% of their total profits for each blockbuster drug that can be traced back to government research support, for a period of five years. The supplemental payments would go directly to biomedical research rather than the general treasury, increasing science funding without requiring a new tax. The error has been corrected in the HTML and PDF versions of the article.