Dutch Flu
The Dutch Flu (In Game Virus) is a disease/virus that started the zombie outbreak on Earth. It was first identified as a weird tulip eating cult, however, Netherlands exported  the virus not knowing that they have been exporting the zombies. Later, the virus was found contagious but was not contained and it further infected living humans. It wasn't able to infect animals even though there were no animals seen throughout the game except for Dogs and Cats.

Appearance Edit

The Dutch Flu is described to have originated from a Weird Tulip Eating Cult in the Netherlands as said by the protagonist, only in Rebuild 1. It could've been contained when it was already known, but it has been brought to different countries, sending the virus all over the world, it infected the whole planet leaving nothing behind but small groups of survivors. As said by the main character, it came from the Netherlands. A newspaper in Rebuild 3 claims that two men, who were unrelated to the cult were put under quarantine with the Flu's symptoms, implying that the cult really had nothing to do with the outbreak.