CANV-11

Cardiovascular Acute Neurological Virus (CANV-11), also known as Cardio-Neuro Virus, is the cause of a worldwide plague resulting in the 2052 Fall of Humanity, and lead to the death of 75% of the worlds population. It's symptoms include insanity, dissolving of brain tissue, an extreme increase in red blood cells, and blood clots. While it is a short term virus, the effects on the body have a high chance of remaining.

Origin
CANV-11 was originally developed in the Middle East, when a group of extremist developed a biological weapon in Sudan. Flying the bomb over to England in a commercial airplane, the weapon was detonated over Oxford, eventually spreading towards London and surrounding cities. London's food supply was now infected, and transport and trade in and out of southern England was made illegal, due to the possible spreading of disease. While the disease was already on its way to forign countries through Immigrants who escaped on airplanes, England put up a group of laws, continually raising the punishment for leaving.

Spread of Disease
While the small group of immigrants brought the disease to other countries, none of the disease patches inflated to the point of infecting other countries. It wasn't until riots broke out in England to weaken the government, that the government soon made it legal to immigrate due to pressure from citizens. Infecting Spain, France, Canada, Russia, and America, the disease began to be a worldwide issue.

Plans to Erraticate
Now spreading around the world, and infecting 25% of all countries worldwide, the United States began to develop a vaccine, that would kill the virus and restore the infected back to full health. Testing it out on 500 patients, it appeared the patient was not affected by the vaccine for the following two months. It wasn't until the third month when the patient developed high signs of agression and extreme muscle progression. These are ultimatley known as the Primaries, super strong, enduring, humans that use other blood to refill themselves because of their constant depleating ammount of red blood cells. This was known to most people as CANV-12. CANV-12 is CANV-11 with the worsening effects of the vaccine. Later, they developed a new vaccine, this was tested on another 500 patients, clearing up the infected of the disease. The vaccine was distributed immediantly. it wasn't until 6 months later that again, the disease returned in a heightened state. this was known as CANV-13.