Zombie Theories Series by Rich Restucci, Michael Kramer

The world has fallen to a relentless enemy beyond reason or mercy. With no remorse they rend the planet with tooth and nail. One man stands against the scourge of death that consumes all. Teamed with a genius survivalist and a teenage girl, he must flee the teeming dead, the evils of humans left unchecked, and those that would seek to use him. His best weapon to stave off the horrors of this new world? His wit.

Immunity. Everyone wants it. One man has it. Our hero, if you can call him that, must escape from the government facility he is incarcerated in. Escape the certifiable, alphabet-agency super-spook who seized him and dragged him across the country. Elude an army of doctors and soldiers who think he is the answer to the plague of the living dead. Flee back to his friends, a continent away... moreImmunity. Everyone wants it. One man has it. Our hero, if you can call him that, must escape from the government facility he is incarcerated in. Escape the certifiable, alphabet-agency super-spook who seized him and dragged him across the country. Elude an army of doctors and soldiers who think he is the answer to the plague of the living dead. Flee back to his friends, a continent away. Can he safely traverse a ruined United States crawling with insatiable, infected cannibals? Should he stay in the impregnable fortress, do his duty, and submit to the testing in hopes he can save everyone? What's an immune, arrogant, rude criminal to do? less