Random thought: Mosquitos, biting bugs, sunburn. Unprotected, how long can you stand outside, just ONE day, and your all burned up, without sunscreen. In many parts, how long outside especially in evening until you get eat up by mosquitos?
Imagine no bug spray, no shelter, none of the modern things, are in a sense the plagues? (I know there is a higher meaning, but on a physical level, almost seems to fit)