Then the LORD said to Moses and Aaron, "Take handfuls of soot from a furnace and have Moses toss it into the air in the presence of Pharaoh. It will become fine dust over the whole land of Egypt, and festering boils will break out on men and animals throughout the land."
— Exodus 9:8–9
What God would do this? If God exists he sounds pretty culpable. If he does not, who did this?
Biblical plague of the Philistines now has a name, Tularemia."
"The biblical plague of the Philistines now has a name, tularemia."
"The laboratory isolation of F. tularensis requires special media such as buffered charcoal yeast extract agar. It cannot be isolated in the routine culture media because of the need for sulfhydryl group donors (such as cysteine)." - Wiki
Thus a cysteine deficiency or chronic low cysteine would be expected to make this disease worse, the bacterium gets it first, the immune systems gets what's left over. Which wasn't enough in the first place. Death follows.