The old man nodded grimly. "We have a few people who have been bitten. They're...different. Not quite zombies, but not quite human either."
I hesitated. "I'm not sure. I've only been able to test it on people who haven't been bitten yet." The old man nodded grimly
I felt a chill run down my spine. This was something I hadn't anticipated. My vaccine was designed to prevent infection, not cure it. Not quite zombies, but not quite human either
I shook my head. "I don't know. I need to study this... see if I can come up with something." This was something I hadn't anticipated
The survivor, a grizzled old man, eyed me warily. "We've heard of your vaccine. It works, but it's not a cure-all. What about the people who are already infected?"
I approached a group of survivors who were holed up in a building. They were armed to the teeth and looked like they had been through a lot.