How are bed bugs spread?

• A. Through food contamination
• B. Air currents
• C. By flying
• D. Through walls, utility pipes, and hallways

Answer: (D)

Bed bugs spread by hitchhiking through the building’s structure and on items people move, not by flying or contaminating food. They crawl through tiny gaps around walls, plumbing, and electrical conduits, and can move from one unit to another via shared walls, hallways, and other structural passages. Since they can’t fly, and they don’t spread through air currents or food, the pathways provided by walls, utility pipes, and hallways are the routes they use to spread, especially in multi-unit buildings.