Here’s about everything you need to know: once it happens, we’ll have about 3-6 hours until everyone in a city is infected, depending on whether or not we quarantine the infected. Here’s a glorious 18 page PDF with all kinds of smartpants equations and more charts.
In summary, a zombie outbreak is likely to lead to the collapse of civilisation, unless it is dealt with quickly. While aggressive quarantine may contain the epidemic, or a cure may lead to coexistence of humans and zombies, the most effective way to contain the rise of the undead is to hit hard and hit often. As seen in the movies, it is imperative that zombies are dealt with quickly, or else we are all in a great deal of trouble.
(Via @jennydeluxe and @gideonyago)
