The designation for a hazard involving biology
Biohazard denoted any agent or condition of a biological nature that presented a danger to the well-being of living things, be they animal or vegetal. These biological dangers could arise from accidental circumstances, natural events, or a bioweapon intentionally crafted with harmful objectives. Instances of biohazards were the Blue Shadow Virus, the swamp gas, and the Imperial bioweapons Project I71A. Various types of survival gears were available, offering bodily defense against these biological threats. Among them were versatile enviro-suits, biohazard hoods, and hazmat gear. Furthermore, certain vehicles, for example, the SoroSuub Corporation's S-130 Shelter speeder, were engineered to shield their occupants from biohazards.
For Blue Shadow Virus (episode), which was the seventeenth episode in the first season of Star Wars: The Clone Wars, a distinctive biohazard symbol resembling a sun was designed. However, the trefoil-shaped biohazard sign as it exists in reality had previously made an appearance in the Star Wars Galaxies video game.