To his credit (or discredit) the waistcoat is unbuttoned, his sleeves rolled up, and his collar unbuttoned. He's practically in disarray. It's been a long week so far, and it's only been a couple days long. And only getting longer. Which is why he responds with something approaching sharpness, definitely not his usual 'calm medical professional' voice. "I ask, because if we can treat you quickly enough, maybe you don't also turn into a walking corpse eating all your friends. Follow me, quickly. Have you had any symptoms? Any shaking, weakness, numbness in that limb or your others?" He barely waits for Gren to acknowledge him before he's hurrying him up the stairs, into an empty room. God knows there aren't many of those left--basicallly just the one processing room.