ZA-0 Pathogen

The ZA-0 pathogen is a blood-born virus of epidemic proportions. It was a amateur, mild, and weaker strain of the ZA1 virus. Although still fatal, the effects of the virus was completely different to those diagnosed with the ZA1 virus.

History
In the 1980's the ZA-0 virus surfaced as an unknown pathogen affecting the communities on Pserimos. The pathogen was very secretive in its diagnosis to infected victims. Many victims remained oblivious that they were infected with the virus until several days had passed when the symptoms had started to affect them.

The ZA-0 origins remains unknown, the intense research by the Shadowstone Corporation has revealed nothing about the origins of the virus, only the symptoms and behavior.

Speculation about the ZA-0 pathogen has led the Shadowstone scientists to the idea that the ZA-0 pathogen may have actually been carried across unknowningly with the European explorers back in the late 1700's. And that the pathogen may have originated from within Europe well before the 1700's.

Plant life
The ZA-0 was infamous for mostly harboring inside plants. It spread through the soil, grass, and plants as its only means of survival.

Evolution
Research indicates that overtime the ZA-0 has evolved substantially overtime, resulting in a greater and more deadlier strain known as the ZA-1 virus today. Shadowstone scientists eventually discovered solid evidence that the ZA1 virus did indeed evolve from the ZA-0 virus.