Vampire

Vampires are a race of blood-drinking undead that were once human.

All vampires are sterile due to their reproduction organs having died during the transformation from human to vampire. Therefore all vampires are former humans turned by another vampire.

Creation
Creating a new vampire is easy and yet dangerous.

An already turned vampire must bite the human and drink its blood but not empty the body completly. This is the most risky step since a vampire's thurst for blood is never satisfied. It must force itself to stop.

Then the vampire has to feed the human its own blood. The blood of a vampire works like poision. It kills the human cells slowly and painfully, turning the entire human into an undead. The poison also makes the turned's teeth grow. When the transformation is complete the human will appear dead – no pulse.

After the transformation – usually it takes about 2-3 days – the new vampire must feed upon a human as quickly as possible in order for the blood to stop the dead organs from roothening. But it cannot drink too much blood otherwise it will drown itself.

When there is blood in the system the rest of the instincts and abilities of a vampire will awaken.

Cure
There is no known cure for being a vampire except death by burning.

But if the human does not drink the blood of the vampire they have been bitten by they will not turn into vampires.

Diet
Blood provides vampires with nourishment, prevents them from decomposing, and allows them to continue to do things that they did in life such as walk, fight, and make love.