Bed bugs (Cimex lectularius) largely disappeared from developed parts of the world in the 1940s, mostly because pesticides knocked them out. Since then, two things happened: Bed bugs, over time, acquired a resistance to pesticides,

Bed Bugs are excellent hitchhikers, too. Not only can they travel around the world, but they’re very good at moving from place to place – from a hotel room to your bedroom, or from that used piece of furniture you picked up at a garage sale to the rest of your house.