Even after bedbugs are eradicated, their waste lingers
Bedbug poop contains high levels of the allergy-triggering chemical histamine
![Bedbugs (Cimex lectularius)](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/02/021218_LH_bedbugs_feat.jpg?fit=860%2C460&ssl=1)
BAD BLOOD Bedbugs (Cimex lectularius) are a menacing bunch. Even when the bloodthirsty insects are eradicated from a home, they leave allergy-triggering chemicals behind.
Courtesy of Matt Bertone/NC State Univ.