The death toll from the listeriosis outbreak linked to cantaloupes rose to 18 as government officials confirmed three more deaths yesterday. The total number of illnesses is now 100, according to the CDC. An FDA official says more victims are expected, since listeria symptoms can take up to two months to appear. This outbreak is on the brink of outgunning one in 1998 that killed 21 and sickened 100, the Wall Street Journal notes. (More listeria stories.)