Zombie apocalypse

In 2015, humanity was on the verge of extinction. It is assumed that it was a virus. It is unknown who created it and for what purpose, but the person who picked it up was considered dead during his lifetime. The first symptom is a cough. A few hours after infection, the person looked as if he had been starving for several months. Green skin, sunken eye sockets, this is the first thing that caught my eye. After that, the person had about an hour to live. But that wasn't the worst part. People affected by the virus did not die forever... They came back, but they came back different... The "zombie apocalypse" predicted by science fiction writers for a long time has come. It is assumed that it all started in southern Africa, and it was supposed to end there, as the military quickly took action. There was a real massacre, in just a few hours more than 99% of the population of Africa was destroyed...