The blood plague is a plague that attacks the hypothalamus, the part of your brain that controls adrenaline, witch turns you feral like a wild animal, it also has traces of rabies in it to turn you fareal as well but it doesn't kill you. It makes you release 200 times more blood, turning you tears, siliva, mucus, and urine to blood, as well as your veins over flowing, filling your skin with blood, eventually, if you don't die in other ways, you will die from your brain drowning in blood after four nights, but a fews brains don't get drowned cuz of luck and survive for as long as they have a chance to. Also, you are still you inside, like, your conus as you in your brain but you cant control yourself, so you go crazy. You become a camabilast and eat and/or kill everything or one they encounter, except for other zombies. The humans call them bloods, for obvious reasons. They are faster and smarter than the stereo typical zombie, and can give you the plague through blood transfer, siliva, and another liquid contact. THEY DON'T EAT BRAINS! It takes about an hour to fully turn, but over time they become more 'mature', what makes them 'mutate', becoming new strads of zombie.