Is the target turned into a zombie just if the attack "connects"?
Or does the attack need to do enough damage to kill, for the zombification to occur?
Thanks
Edit:
Reading the wiki it seems it just needs to connect with the target, so the damage of the weapon inflicting the attack could virtually be 0 and the zombification will still happen.
(I'm not exclusively talking about a melee weapon; in fact I use this ability with a ranged weapon, applied to the ammo, the damage type of the ammo themselves is "acid").