The people I can think of who might currently be in a hospital are Cherry, Alex, Katie and that female cop Viktim.
There are three Viktims in that list of course. Julian was left to take Alex and Katie to hospital but I don't think we ever got an update on them.
I'm not sure if there's any intended discernable sequence to what's happening, but I think the first camera to go down is showing the hospital entrance. The last camera still working in the final panel shows a scared nurse next to a screened bed. So my guess would be that the dying cameras mark the progress of something making for the woman in the screened bed.
562 suggests that the blood monster won't be caught on cameras. But the police officer with the uncontrollable masturbation problem (I'm in no position to judge) is the only one I can think of who would require a screen. And she's the last one of those four people that I'd expect the monster to want to visit. If this is the monster, it would suggest it is targeting victims, which again raises the question: why Vik?
Obviously though, this may be something entirely new.