The News story 'Mental-health guide accused of overreach' ( Nature 479, 14; 2011) wrongly stated that the DSM-5 petition was sponsored by the American Psychological Association. It was co-sponsored by five divisions of the association, not the association as a whole.

The News Feature 'The Black Death decoded' ( Nature 478, 444–446; 2011) wrongly located Sharon DeWitte at the State University of New York. She is now at the University of South Carolina in Columbia.