biohazard - orange

alert bacillus bacteria bacterial beware bio biohazard biohazardous biologic biological biology bioweapon catastrophe caution chemical chemistry contagion contagious contaminate contaminated contamination crisis danger dangerous deadly death disaster disease emergency epidemic fi fiction garbage grunge hazard hazardous hazmat health horror infected infection infectious lab laboratory lethal medical nightmare orange pandemia pandemic poison poisonous replicate reproduce risk sci science sign symbol technology toxic toxin transmission viral virus war warfare warn warning waste weapon