Explorers from another world have arrived on planet Earth to discover the secrets of a virus that has wiped out civilization. Racing against the clock to prevent a similar threat on their own planet, they must isolate a sample of the virus and return safely to their ship, avoiding the remaining population that may be hostile to their intrusion. Discover how a single virus has ravaged a population as you explore the Phantom Planet.

Explore the inner workings of HIV, learn more about how scientists are working to cure this deadly virus, and discover how HIV impacts the world's population. Begin your exploration today in Phantom Planet HD, from World of Viruses.

Learn more about World of Viruses and our collection of other iOS Games and Apps at http://www.worldofviruses.unl.edu.