Nat. Biotechnol. 22, 1105–1109 (2004)

On page 1108, paragraph 1, line 7, reference 49 in the statement “B. thuringiensis has 'a significant history of mammalian pathogenicity'46 and is thus not irrelevant to food safety or other environmental issues” was inappropriately cited (reference 46 states: “Bt does not have a significant history of mammalian pathogenecity”.) The text should have read that “B. thuringiensis belongs to a closely related clade of bacteria, which includes Bacillus cereus and Bacillus anthracis, and which has a significant history of mammalian pathogenicity1,2 and is thus not irrelevant to food safety or other environmental issues. Members of this group are so closely related that they may be considered members of the same species, often differing only by the presence or absence of certain plasmids3,4”.