The virus sounds like it was accidentally released from their labs. Might have been more infectious than they thought, maybe the vectors were some confluence of factors they didn't expect. Nigel starts writing down a few more notes. These officers 100% weren't infected? They weren't like... orcs or something where it might not be as obvious? Nigel has a low opinion of the police. He flips back to his alchemical notebook. That is good data though. I'll see what I can come up with - is this the best line to reach you on if I find anything else?