Seems like I'm always banging on about zombies these days...
By now, we all agree that slow zombies are the real deal. Huzzah! Fast zombies are out! Alas, no sooner have cleared that issue up when we are faced with a new debate:
Biological zombies Vs. Infernal zombies.
Resident Evil and 28 days later have taken the zombie mythos further into the realms of being a plague or virus bred phenomenon. These type of zombies are the result of gene-tampering and military research into viral warfare and mutagenics. They spread the disease through their bite, their claws and their infected blood. So when young Billy tells Sarge he won't make it home and coughs black blood straight into Sarge's face, we know Sarge is a goner too. Nice.
However, exceptional individuals like Astrodog, who spent their teens playing D&D and listening to metal, know better. Zombies are undead creatures with supernatural origins. They have either been raised by necromancy, drafted as warriors of Our Lord Below, or the result of a housing shortage in Hell. And that's the way we like it.