Regardless of the biophysiological causes of various zombies, one theme that has always held true is the theme of dehumanization. That's the fear that all zombie hordes truly represent. Beyond the pain of being ripped apart, we fear becoming a zombie because you wouldn't be human (or alive) anymore.

If becoming a zombie means being infected by a Blacklight Virus, hell sign me up. The theme of that story is the direct opposite of the previous.