Pull Alisha in and shut the door up tight.
From Create Your Own Story
You grab Alisha by the arm and pull her back into the room, slamming the door with your free hand, then quickly move to lock it up tight. You can hear more groaning outside, and it's now obvious to you that there are other infected in the alley. Still, the door should hold, and you press your back against it to catch your breath.
Sam has stepped back into the room, covering her naked form with her arms, and Alisha, still brandishing the gun with an angry look on her face stares back and forth between the two of you.
"I thought you two had just met," you say, confused. "Now I'm hearing that you two were a thing?"
"It doesn't matter," Alisha says. "We're obviously not, so who gives a fuck?" She turns, gun limp in her hand at her side, and narrows her eyes at you. "Why do you give a fuck, anyway?"
