According to Michael F. Potter, an extension entomologist from University of Kentucky College of Agriculture said most householders of this generation have never seen bed bugs. Until recently, they also were a rarity among pest control professionals. Bed bugs infestation were common in the United States before World War II. But with improvements in hygiene, and especially the widespread use of DDT during the 1940s and '50s, the bugs all but vanished. The pests remained prevalent, though, in other regions of the world including Asia, Africa, Central/South America and Europe. In recent years, bed bugs have also made a comeback in the U.S. They are increasingly being encountered in homes, apartments, hotels, motels, dormitories, shelters and modes of transport. International travel and immigration have undoubtedly contributed to the resurgence of bed bugs in this country. Changes in modern pest control practice and less effective bed bugs pesticides are other factors suspected for the recurrence. For further explanation, find his original article at below.
http://medent.usyd.edu.au/bedbug
http://medent.usyd.edu.au/bedbug
