The streets are overflown with the presence of stagnant corpses.
The first victims of infection.
their stricken bodies omit bodies a formidable stench of dermal [bad word] 
The vile scent has crept unto your doorstep. [bad word] your sensory glands, stimulating a thirst for further investigation.
An urge you should never have acted upon.
Oblivious to the perils you've entered.
Presumed to be dead, the infected are resurrected.
Like a swarm they approach with malicious intent and amongst them all you're surrounded.
the starving horded overtakes you.
Teeth and nails desperately serrate through delicate flesh.
Their abuse rips open fresh wounds, exposing your blood to their hazardous pathogens.

You're now one with the infected.
Soon to be revitalized by an unholy resurrection.

Let it spread.
With each person infected, the contagion grows stronger.
Virally re-animated, through a continuous cycle, you have risen as a vessel of contaminants by which the contagion shall spread