Microscopic organisms that enter the BioCosmos from the Beyond. Some are dangerous, but many others are benign or even beneficial to their Hosts. They have the amazing ability to transfer genes and powers through the ancient ritual process of Conjugation. Through this a benign bacteria can mutate instantly into a life threatening pathogen.
Nature’s most brutally efficient engine of destruction. Since time immemorial, these microscopic pathogens have been invading hosts, seizing control of their genetic structure, and twisting it to their own image—increasing their threat exponentially with each successive infection. Few life forms have proved as durable and adaptable as viruses, the dark side of the Survival of the Fittest.
The genetically engineered microbe developed in the labs of The Combine. Its structure is as unique as it is insidious—a bacterium that carries within it the DNA of a deadly virus. Once absorbed into the skin, it kills within twelve hours—the exception being Alex Hawking, whose immune system powered by his will to survive successfully holds off the infection.