MD au

hello this is my first talkie ever so here we GO! it's just a ordinary day but suddenly N found a tube with yellow liquid and he accidentally breaks it, I call it "the sun-burn" here's the stages stage 1: stomachaches stage 2: throwing up and always twitching stage 3: burnt at skin (Ig metal?) and showing aggression stage 4: yellow liquid coming out from mouth and visor stage 5 : final stage, mutant and kills or destroy anything in it path