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A perfect killer escaped from wild places, where man destroyed the equilibrium of nature.

Another disease frightened human kind and science must study and stop this enemy.

... but somewhere in the world, he finds a host... in hospital a patient is very sick...

The scientists from level 4 discover a new virus.

The brain's destroyed and body's shacking

The arms are contorted and eyes are bleeding

The liver's growing and then explodes

The kiddneys are filled with bloody gore

The corpse's spread control is lost

And the virus seeks another host

This epidemic can't be rejected

Thousand of people are infected.