Decepticon Biological Warfare Program

Ever seeking an advantage in the Great War, the Decepticons set up a Biological Warfare Program, designed to kill Autobots with disease.

Sick Mind
During the Great War, Megatron managed to develop Cybonic plague as part of the Biological Warfare Program. The plague was a success, wiping out millions on Cybertron. However, Megatron made sure to develop a cure in the event that he was infected.

Toxicity
Megatron also discovered a means of refining raw Tox-En into a devastating weapon, which may have also been a project in the Biological Warfare Program.