What is left 4 dead story

I'm gonna show you how the infection started and what is special infecteds story.it all started where the scientific labs of cures and medication.
worked on making a cure for both AIDS and cancer. and even medication for rare blood diseases,and also to give human stronger abilities for warfare and
fileld battles.as they continue to work on these different cures.they first tested it tow subjects a middle aged man that was dying of cancer,and an animal,which was a sick dog with skin cancer.the man was cured of cancer,but the dog remained showing sings of it's cancer and soaring skin.afterwards,during the first week of the dog testing.it became infected but no signs of rage or aggression.the dog was being held in a cage.as a worker went into the cage,the dog then showed sings a pale skin and sores and showed sings of aggression and rage and then bit the worker's hand.the worker ignored it's action and put the food in place and locked the cage.the dog then bit a few more workers.a couple weeks after,the workers then became infected and spreaded the infection.as the infection spreaded and as the city is in flames.it was a living nightmare.soon the entire state and not long after,then more than half the country became infected with zombie.there is no telling now rather the infection will die or end the entire world.now the special infecteds:

the tank:the tank was a first subject for the medicine for stronger abilities used for war,tank was the general in military branch,and was the first to volunteer in the experiment.the tank showed no signs of any increased strength or other abilities.then during the infection spreading,he was attacked by a zombie and then he became infected and mutated into a monster.

the boomer:the boomer was a fat guy and was a chef.the boomer was a sick of a disease,vomiting and a skin conditions.such as bumbs and soars and a herina
disease in the stomach.after he became infected, he then uses his vomit on humans to spread the infection.

the smoker:the smoker was tragically burned to death during a fire incident.when the infection was spreading.making bubbles and burns throughout his body and face he then was revived from the infection.as his face was burned and his toungue was re-devoloped and became tentacle through a failure of cemicles of trying to put our fire with extinguisher,as he fell into accidently of another using it.causing a severe burn through his face and down his esaphagous.

the hunter:the hunter was a man that was tested and cured with the dog,it was the middle aged man that was dying from the cancer.he then took the cure and was cured of the cancer,and was heald miracously.his wrinkles were gone and look young again.during the infection of the virus spreading he was then attacked by a zombie and then mutated into a creature from the cure of cancer giving his miracalous abilities similar to the tank.

the witch:the witch had a dramatic change during the infection.she had a disease of a sickness in the brain chemical causes her to have personality disorders and post-dramatic dempression.she was in her late 50s who was still practicing as a witch,and constantly had bi-polar and personality disorders.she then cut herself up and intentionally let her nails grow for years.she then became infected and then continue to have a brain fincationing in a emotional distress.this way the story of how the left 4 dead started,and hope you see it as a good way explaing all special infected and how the infection started.end.