The Tacet Cerebrum Mortem (or silent brain death virus) is one of the more deadly and interesting viruses in the world. Try not get it, or any virus really.
How to get infected
There is a pretty good chance you are going to get infected if you have spring time allergies. What the virus does it hitches a ride on pollen. It enters the body either through your nose or mouth. The virus has a mutation that allows it to pass through the cell membrane and allows it to go right for the nucleus. Then the virus will mess up the alleles causing different genes. The virus will mutate the codons to mess up the DNA. Since the DNA is messed up, the polymerase will copy the DNA to make the mRNA where the nucleotides are also messed up. Now the transcription process is messed up. Then the mRNA will go to a ribosome and the tRNA will transfer an amino acid onto the mRNA which messes up the translation process. Of course the amino acids will make a protein that is also messed up.
How it spreads
Basically it spreads through germs. So where a infected person's lips have been, keep your lips away. Also try not to get sneezed on. If you do get sneezed, clean yourself up with hot water and soap as soon as you can.
How it mutates and what it does to the body.
Esentially the virus is mutates over time while in the hosts body. After the virus enters the body, it will first target a few red blood cells. Due to the red blood cell characteristics, the virus will mutate and will then attack a few human skin cells. The virus will do a insertion mutation and mess up the DNA and cause humans. At first the purple skin will remain in one spot, but then it will slowly spread. After the virus attacks that, it will then attack the voice box in the human body. The virus will attack the voice box cells, but instead of changing up the DNA, it will simply render all voice box related cells to become inactive. Finally the virus will then pursue the human brain. The virus will slowly attack human brain cells and cause cell death. Eventually it will kill all the human brain cells and render the host dead. The virus is able to do this through a insertion mutation.
The cure and how it was discovered
For some reason, the virus does not like pigs. If a person eats pig with CRISPR on it, the virus dies. The human body returns to its normal color and the person can talk again. Brain cells won't be brought back alive though. The virus attempts to leave the the hosts cells if there is pig nearby in the body. Once the the virus leaves the cells the CRISPR will go after the infected cells and then does a deletion mutation on the cells. It fixes the nucleus which will go back to producing its normal DNA. This cure was accidentally discovered when a infected person was being studied by a doctor. The doctor noticed the virus left its cell when eaten pig was within 4 inches of the virus. The virus then gets attacked by white blood cells and eventually dies. Then the virus is not able to make more of itself anymore. We noticed all samples of infected hosts that have a extra nucleotide made by the virus called phosporyate (or P if you prefer). When we tested the CRISPR on multiple samples, 75% were back to normal within 5 minutes, 15% were back to normal in 20 minutes, and 10% were back to normal in 1 hour. However we were able to utilize the pig discovery and put that into the cure. When testing this with CRISPR the time it took for the samples to return back to normal was halved. Essentially the pig is not required, but recommended for efficiency. To be cured, all the infected host has to do is eat something made of pig with 50 milligrams of CRISPR sprinkled onto it.