Luisi

The Luisi tribe is an extremely isolated pocket of Humanity living on the coast of Louisiana, in the Bayou. They travel primarily by boat, and survive off of the swamp. They were first spotted by a C.S.S.N Gulf explorer vessel, they reportedly fled from the beach into the swamp. The Captain stated in a report that the viewed tribesmen were quite young, the youngest likely under ten, the oldest only 20. It is hypothesized that there are no living members of the Luisi tribe that are old enough to remember the Apocalypse, or even the plague. As far as they know the swamp is the entire world, and they are the entire world's population.