In 2003 A.D., during the Iraq War, a group of American Soldiers and a UN Peacekeeper became the unwitting witnesses to a horrifying event in an Iraqi town one night. Around a week after arriving in the town, one of the Americans, a 19-year-old named David Torres, came upon a horrific sight. A middle-aged man was crouching over a young woman, likely his daughter, as the soldier watched the man bite viciously into her arm, the woman crying out in pain and in terror.
Reacting instinctively, Torres aimed his gun at the man, and when the rabid father turned and growled at the soldier, Torres fired multiple shots into the man's chest. However, this didn't harm him at all, and he reeled back toward Torres and shambled toward him. By his own later report of the incident, Torres shot the man again multiple times to no effect, before landing a lucky shot to his cranium, causing the man to fall dead on the floor of the house.
He then went and informed a local doctor of the attack and looked on as the doctor began to treat the bite wound on the woman's wrist, before returning to his army base, where he reported the incident as a domestic dispute between father and daughter, likely due to a mental breakdown by the former.
However, later that night, the bitten daughter must have died and turned within her home, because David and the rest of his squad received an emergency call for reinforcements from the town. Receiving word that more residents of the town had gone insane and were killing and devouring other residents, he and his squad rushed over to the town, where they were greeted by a shocking sight. Ahead of them shambled countless locals and their fellow American soldiers, all moaning ungodly moans and snarls.
They watched as the rotting people attacked, bitten, and sometimes, even devoured other Iraqi's and American soldiers. Also from Torres's later report, the young soldier fired multiple rounds at the attackers, as groups of them began shambling toward him and his squad. His Lieutenant and squadmates joined him, as they shot the rabid townspeople and soldiers in their bodies, but just like the man that David shot earlier, they were not killed by body shots. It was then that he remembered how he managed to put down the older man and told his squadmates this.
They then shot at the people, this time aiming for their heads, which finally killed them, saving countless other soldiers and locals who had not been killed yet. During the battle, they managed to rescue a UN Peacekeeper from France named Marie Bernard from a car she had locked herself in when the massacre began. Giving her a pistol to defend herself, she joined the American soldiers in eliminating the remaining sick people.
After the bloodshed ended and peace returned to the town, the soldiers reported the incident to their superiors within the Army, and Marie reported it to the UN authorities. The latter explained that she had witnessed the incident begin, as she said that she had seen a young woman (likely the same one that David Torres had saved earlier) emerge from her home and attack and brutally maul multiple people in the makeshift hospital that she was overseeing. She explained that she had escaped from the hospital when many of those who had been attacked seemingly became as "sick" as the young woman had been.
The authorities in both the Army and the UN, as well as people in black suits, listened to each of their accounts of the incident, and later ruled that it was caused by riotous local Iraqi populations, much to the disbelief of the American soldiers and Marie.
(This is a fan-made addition to Max Brook's World War Z: Recorded Attacks. This is not an entry from the real book.)