It crushed until the neck snapped and the jaw broke against the ground. Threat neutralized.

It stopped, examining the human. He seemed uninfected. It couldn't see any bites or smell the fever from here, but that did not mean it was a certainty. It had heard him coughing. He might be sick. Or injured. This had to be rectified. Humans never seemed to heal without assistance.

There was a first aid station a few meters back up the hallway. It turned, removed the kit from its case, then advanced toward the human.