It seems that the infected are the side effect of the virus grown in the bio-laboratory.
Probably when a security flaw opened, the virus spread to the island.

It is not yet clear whether it spreads by air or through aquifers but what is certain is that biomass, similar to fleshy appendages that are sometimes glimpsed in the environment, are one of the final stages of the virus.
The biomass therefore seems to be responsible for the mutations that occurred to the civilian inhabitants and to the military personnel who rushed to contain the first stages of the infection.

Contact with non-bottled liquids or non-canned food is therefore strictly prohibited.

Mutates are fast, extremely aggressive and above all voracious.
The first to be devoured were the breeding animals of the surrounding farms and estates.
For this reason, any living being, human or animal, is for them a prey.

Apparently they do not devour each other ( to be confirmed ).

Finally, it seems that they are photosensitive.
At least the infected humans.
Our drones have in fact observed the absence of external diurnal activity by the mutants, even if some animal species that have come into contact with the pathogen, such as stray dogs, wolves, wild boars and bears, do not seem to suffer from photosensitivity.

It is therefore recommended to exercise extreme caution at night.