The problem with it being just two IC days, is that it makes it a short time frame, reducing the chance for multitudes of people to play in the plot. If it's going to be board wide, it's got to be something of a longer duration.
Just saying?
Because i wouldn't mind having a character of mine be infected, but i might miss it... because i start school this Monday, and sometimes my projects demand my full attention. People also work, and have a life outside the internet. And unless MH time slows down to counting hours while the plot is in session, it seems very quick and short. That might just be me though.
With like those movies that people get infected and start dropping like flies... they drop within a week or two at the least when they start showing symptoms. People's immune systems are different, and they develop degrees of sickness and such. Some symptoms take a while to occur while others are skipped at random. My cold is my father's flu, for a nice real example.
If it was stretched, regardless of whether or not the crazy guy planned it to be, anyone can join in at anytime, show whatever degree of sickness they chose, even a while after the vaccine is discovered and given to those who are ill, as it'll continue for a little while after until the disease is purely contained......
Nonetheless, i like the idea a lot. ^^;;