Though there is a ton of blood and gore, none of it is particularly visceral or "gnarly", though it can be highly disturbing due to some of the circumstances.
Blood everywhere. Lots of spurting, spitting and dripping gore from victims and vampires, especially in the beginning. the worst is a stake through a vampires eye. Some victims are shown covered in blood and dying. A baby is visibly killed by a vampire (though it's not very graphic). Lots of gun shooting and staking of vampires with knives and sticks. Not just vampires are killed, human characters both innocent and evil, are killed by other humans (nothing enormously graphic).