Vampires Map 1.8.7/1.8

Features:

Naturally spawning vampires in caves.
Vampires can change to and from bats.
Vampires can only be killed in bat form (or by hitting it with a Smite V diamond sword)
Vampires can drop a tear which will give a disease giving jump boost, speed, resistance, and extreme hunger.
The disease can be cured by naming a bone ?Undead Last Rite? and placing it in your inventory.

To add any one-command creation to your world, first give yourself a command block with /give @p command_block.
Next, place it and paste the following command inside it.

For 1.8

http://www.dl3.5minecraft.net/download.php?file=58e4c7cbbb92191d51f3f0b6661ed205

Credits: Jragon14