Zombie attacks can it really happen?

im in the military and i live on base im in the infantry but im really scared of the day zombie might really happen,,i always have weired dreams of zombies killing,,ive read on the army times that there 28% away from completing the bringing back of dead cells,then i read of this fungus that has been taking over ants and other animals and making them go crazy,then something happen while i was in the uk these 2 people came in with wounds all over them and they died in the hospital then 2 hours later came back to life and started acting crazy and then they quarantined the whole hospital,then i just heard that the h1n1 virus(swine flu) has been mutating into the h1z1 virus(zombie virus) several cases have been confirmed all over the world,you died from the virus and 10 mins later the heart starts beating but the brain is dead and the person infected starts eating people and attacking then 2 hours later the heart dies and the person is completely dead