 Yes, most of the soldiers had been inoculated before they entered the battlefield in their home state, but not the 20th of May. And so the serum, as you suggest, that they took was defective. And so suddenly, instead of being a part of the battle, they're part of what they call the smallpox camp. That's his new command, Camp Smallpox. Yes, sir. And then some die, many are sick. It's a terrible moment for the 20th May.