They find answers on a blog, where an earlier "tag" victim explains the rules by which this odd strain of zombiism is spread.    From Wordnik.com.  [Boing Boing] Reference

It's a serious look at the mathematical epidemiology of zombiism, published in "Infectious Disease Modelling Research Progress.".    From Wordnik.com.  [Boing Boing] Reference

The link from vampirism and zombiism and a few other -isms to a brain-influencing parasite is solid and incredibly believable, and his protagonist, the peep-hunter Cal, is wonderfully empathetic.    From Wordnik.com.  [peeps prestige] Reference

With their pasty skin and hollow eyes, they actually look a bit zombie-like, although George Romero's NIGHT OF THE LIVING DEAD 1968 was still a good six years away and associations of zombiism were still strictly Haitian.    From Wordnik.com.  [Lost souls in the sunset] Reference