Dawn of the Others

The year is 2035 it's been ten years since the world went to shit. I'll give you some background, scientists had been working for five years to create a vaccine for Covid-19 but more and more variants made it very difficult. Eventually they created what they thought was, the perfect vaccine, what they actually created would wake the dead. Dramatic I know so let me explain a little more, all the changes they made to vaccine caused it to mutate, people who had this vaccine started to become sick, very sick and if they didn't survive the sickness they became the Others, Walkers, Zombies whatever you want to call them they were dead but roaming the country, primitive and wild.
The government panicked they created a new and improved vaccine and that is what happened to Jacob. He wasn't turned by a bite or a scratch like most Others are now. The people like him, who were key-workers and were the last to have the 'new' vaccine, die and then come back, just as they were before, only now they need fresh blood to survive and retain our sanity, they are the Breathers.