The Defense Advanced Research Program Agency (DARPA) has developed a new population control technology for infectious disease surveillance inside of humans. This technology consists of an implantable microchip that acts as a blood surveillance system. The implant contains a tissue-like gel and a sensor that is designed to detect for changes in the body on a continuous basis. If these sensors detect the presence of any coronavirus, the system will alert the individual that an impending infection is occurring in their body. This sensor could theoretically relay the warning to any associated authorities; for instance, if the individual is aboard a ship, the ship authorities would want to have access to this bodily information. The system is designed to monitor infection and isolate human beings before they test positive for a virus. The system tests people preemptively and on a continuous basis, allowing authorities to isolate and treat individuals before they are deemed a "public health threat."