[ it's an urgency John won't protest to: as casually as he's trying to approach it for the introduction, having Magnus present and available at the Sanctuary will make the situation a lot safer ]

Somebody's out on the streets selling the infection. The suspicion is that there's a patient in the Sanctuary selling blood to whoever it is that's peddling it. I need you to keep an eye out for any suspicious activity - sample-taking that hasn't been expressly requested by the institute, an individual being drawn from more often than the rest. Anything like that.

I've got some of the staff already keeping their eyes open, but we need someone there who can intervene if it comes to that.