The Outlook article 'Trials of an anticancer jab' (Nature 488, S4–S6; 2012) contained an error in the table: in Australia, the uptake for at least 1 dose is 83% not 74%. The label in the graphic stated that vaccination started in 2010 instead of 2007. And reference 9 should have read Tabrizi, S. N. et al. J. Infect. Dis. (in the press).