Salt Line by Holly Goddard Jones

Imagine that in the not too distant future America is messed up with the majority of people crammed into living on one side of a wasteland named "The Salt Line". The well off folks can pay for the boot camp adventure of a lifetime on the other side of the salt line but with luxury camping or at least that is what they think. Instead, they are shown a vast area where if the killer ticks get you and you aren't able to catch the bug before she lays eggs goodbye camper, they visit abandoned relic museums named Cracker Barrel and try not to let anything happen to their partner. Soon things go downhill quickly and the ticks might not be the most dangerous thing out there. They all had different reasons for going on this trip but surviving it will be the one thing they all share. A touch of "Station Eleven", "The Fireman" and "Survivor" it is a thrill ride from start to finish.