• To refer to the “eradication” of river blindness in Colombia (10 August, p 6) was overambitious: its removal from just one region is “elimination”
• We should have made it clear that software analysis of DNA from the scene of the murder of Meredith Kercher indicated only that Amanda Knox’s DNA was not present in one sample on a bra clasp found at the crime scene (6 July, p 15)
