The KND and SACT (Special Alien Capture Team) have set up stations in the infected zones to let you collect and dispose of newly created Pods. If the Pods aren’t collected and disposed of, they will grow into Terrafusers and the infected zone will expand further. The collected Pods need to be disposed of quickly, so you’ll need to run through the area scooping up as many as you can in as short a time as possible. When you reach the end, deposit the Pods in the drum provided by SACT Agents.
Also see Infected Zone Races