Deuteronomy 28:59

then the Lord shall magnify thy plagues, and the plagues of thy seed, great and wonderful plagues, and evil and abiding diseases.

Then the Lord will make thy plagues wonderful, and the plagues of thy seed, even great plagues, and of long continuance, and sore sicknesses, and of long continuance.

then Yahweh will make your plagues and the plagues of your offspring fearful, even great plagues, and of long duration, and severe sicknesses, and of long duration.