In 2005, a new virus caused a frightening pandemic , with hundreds of thousands of deaths around the world. Travelers and pets spread this deadly virus in only a few hours, and it seemed unstoppable. Fortunately, the pandemic took place in a virtual world, and those who died were avatars, not real people. The pandemic?A blood virus.The place? World of Warcraft, an online computer game with over 6.5 million players at the the outbreak.