Agree to go back to the room and hide.
From Create Your Own Story
The two of you rush back to the control room as fast as your legs can carry you. Claire slams the door shut and locks it up tight.
"Get the slicker off, and get out of your clothes," she says.
"What?" You ask.
"We don't know how the infection spreads for sure. Your slicker is covered in blood and the back of your pants legs are worse. Get it all off."
You panic. She's right. You fling off the slicker fast, and then immediately get to work on your pants, yanking them down your legs and kicking them off into a corner. You yank up your shirt over your head and toss it to the floor, and consider dropping your boxers.
"You're alright," Claire says, holding up a hand to stop you. "Relax. Everything's good. We can rinse your things out in the bathroom, and sit tight for awhile. If the noise attracts anything, we'll just sit quietly."
"But what if I'm infected?" You ask, still in a bit of a panic.
"Then I'll shoot you," she says calmly. Your eyes go wide at that thought, and she smiles. "Relax. I'm sure you're fine. Let's just settle in and search the place a little better, see if there's anything we missed."
