And the lord said unto Moses, Yet will I bring one plague more upon Pharaoh, and upon Egypt; afterwards he will let you go hence: when he shall let you go, he shall surely thrust you out hence altogether.
—EXODUS 11:1
The subtle malaria of the rebel soil destroys and disables more Northern soldiers than all the wounds received from rebel arms.
—EDWIN C. BIDWELL, surgeon, Thirty-first Massachusetts