Air 3 is a transmission exclusive to the Neurax Worm DLC and the Necroa Virus DLC. Neurax Worm It gives the Neurax Worm further survival in arid conditions. Necroa Virus It appears only after evolving Air 2, Blood 2, and Cytopathic Reanimation. Symptom Combos It is required, along with Cranial Elephantitis symptom, to produce the Cranial Dispersion combo and, thus, the Use your head achievement. Retrieved from "https://plagueinc.fandom.com/wiki/Air_3?oldid=62391" Categories: Transmissions Neurax Worm: Transmissions Necroa Virus: Transmissions Neurax Worm Necroa Virus Community content is available under CC-BY-SA unless otherwise noted.