Everyone is infected their is no doubt. If you are human you have no immunity against it. It always the same virus but always a different process. The host's heart is attack first. After that works it's way to the brain. Then the rest of the body just fall victim. The virus symptoms cloud you thought and impair your decision. Once you acknowledge these signs let everyone know, it is contagious. It also fill you with ecstasy or anger. In the end it just going to hurt. The virus can cause death but only to those who are to deep. Or to those who feel like living is not worth it anymore. If you are human you have no immunity against it. The only cure is a close heart.