QUOTE (Kumo @ Mar 8 2010, 12:15 PM)

It's a death wish from the ghoul... Sooner or later somebody will scan him astrally and put a heatwave on his head (and start a hunting season for all ghouls in the sprawl). AND at first the ghoul has to gain nuyen for the 'ware, find some good (and willing to work with Infected) disguise specialist/surgeon.
Maybe a Contact with ghoul infects only with Power, let's say, 2?
Actually Jopp has it about right. RAW makes becoming a ghoul easier than breathing. It isn't only contact with a ghoul that can cause infection, but contact with their blood or saliva (Or any bodily fluid, and likely things like bits of skin as well) as well, and the power is impossibly high, even with medicine you're going to be a ghoul.
So, all a ghoul has to do is get a nanopaste disguise (Or any kind of disguise that would let them blend in. Heck, depending on how bad they are, maybe some decent makeup work) to be not noticed, and then go into a subway and sneeze some. Maybe pose as a preacher or something and try and shake people's hands. Sure, a mage might find them out if they decide to astral scan them, but they'll have already infected hundreds of people, who will go on to infect thousands more.
Even scarier, an awakened ghoul. Uses a physical mask for disguise, then uses initiation to disguise their aura. Bam, can't be detected, and can walk around infecting tons of people by sneezing on them, shaking their hand, leaving some skin on the toilet seat or sneeze on the soap dispenser.
RAW says that one halfway competent ghoul could cause a Zombie Apocalypse with minimal effort.
Heck, honestly, just have a ghoul sky dive without a parachute into a heavily trafficked area. Splat goes the ghoul and little infectious pieces go all over the place, infecting dozens of people, most of whom will go away and start infecting others before the situation can be contained.