Wow, you guys have been busy. I know I've popped in here and there to make quick replies, but you guys have been busy. And civil. I'm impressed.
Anyway, here are some of my thoughts on the discussion(s) going on. I probably won't quote much because there's been a lot of talk, but I reserve the right to change my mind. Some of this is just me blue-skying all of a sudden as thoughts hit me, so they might not make as much sense as I'd normally like. If they stick with me, I might refine them a bit later.
"Contact" is patting someone on the head, shaking their hand, a chaste little kiss on the cheek, brushing up against someone in a crowd. That sorta thing.
The sort of thing that could bring down a civilization if too many diseases actually followed that vector, and which makes DMSO (as presented here many, many times) one of the ultimate terror weapons. Yes, I think mixing ghoul juice with DMSO would translate it to a Contact vector for use in a small-scale sort of terror attack. I don't think you could do a whole city before your chopper got shot down, but you could do some damage, that's for sure. Problems with
DMSO are its viscosity and it's high freezing point (18.5 C, or 65.3 F; ya gotta keep the stuff warm and diluted to make it useful), but those are easily overcome.
"Injection" includes, but is not limited to: Bites, scratches, actual syringes, coated blades and arrows, doing the nasty, ingestion of bodily fluids (including the ghoul spitting in your mouth or eyes), and contact with open wounds. "Did it bite you?" and/or "Did it scratch you?" should be scary questions to hear in some conditions.
I think the fluff has long supported the notion that HMHVV is a tough, tough virus and survives a long time out-of-host. One of the things that makes dealing with ghouls a problem: Most live in horrific conditions where sanitation is a dream, not a reality. Those claws of theirs are sharp, jagged, and likely covered in Infected material.
More later, I'm sure, as I go through things and find bits to respond to.