"The X-Virus is a virus that deletes the data of any digimon it comes in contact with," Jake explained. "Before Yggdrasil deleted most of the old digital world it had given a selected few the X-Antibody so those digimon could survive and prosper in the new world."
"How do you know all this?" Akira asked.
"Sampson filled me in as soon as I got back," he said. "The X-Antibody is a genetic antidote that sleeps within a digimon's DNA. When that digimon comes in contact with the X-Virus the antibody awakens and fends off the virus. We don't know enough about it to know whether the side-effects are good or bad. Only a few digimon in the whole digital world actually have the X-Antibody, Dorumon is the only digimon we know for sure that has it."
"And why do we know for sure?" Rydia asked.
"Once the X-Virus had spread throughout the digital world, Yggdrasil created an army of Dorumon to protect itself when some of the Royal Knights turned on it."
Luna stopped. "Royal Knights? Who are they?"
Jake waved the question away. "I'll tell you about it once our mission is complete."
