yup.
Sadly the most interesting products are unsuitable for this particular use. There aren't many viruses that kill within hours of infection. Its just too deadly to be reliable. Such a disease would cause itself to go extinct. But then there's your good old friend gas. Gas is reliable for this.

Post is being written, so it should appear relatively soon. Forsythe isn't on right now, but when he does get on, it'll be his turn in it.