In the article by Savarese et al entitled “U1 small nuclear ribonucleoprotein immune complexes induce type I interferon in plasmacytoid dendritic cells through TLR7,” which appeared in the April 15, 2006, issue of Blood (Volume 107:3229-3234), the 2 column headings in Table 1 are incorrect. The first, “IFN-α, U/mL,” should be “Plasmacytoid DCs”, and the second, “IL-6, pg/mL,” should be “Conventional DCs.”