Jamieson, Fausset and Brown on Leviticus 26:16

16. I will even appoint over you terror--the falling sickness [Patrick].

consumption, and the burning ague--Some consider these as symptoms of the same disease--consumption followed by the shivering, burning, and sweating fits that are the usual concomitants of that malady. According to the Septuagint, "ague" is "the jaundice," which disorders the eyes and produces great depression of spirits. Others, however, consider the word as referring to a scorching wind; no certain explanation can be given.