Apocalypse

it's been 2 months since THEY appeared...
It used to be a small illness, nothing some medicine couldn't fix, then it got more deadly, How? Nobody knows.
Cannibal-like traits started to show, there are reports of the sick people trying to eat others or themselves, a whole new hospital got built, that's where they kept the sick people.
Then the sick got stronger and were fighting each other and the staff, the sick escaped the hospital and were free to roam society, they started to infect others, and thus the news deemed it the apocalypse.
Some were able to find shelter and hide from the sick, others weren't so lucky or they killed themselves.