The decline of bed bug populations in the 20th century is often credited to potent pesticides that had not previously been widely available.[44] Other contributing factors that are less frequently mentioned in news reports are increased public awareness and slum clearance programs that combined pesticide use with steam disinfection, relocation of slum dwellers to new housing, and in some cases also follow-up inspections for several months after relocated tenants moved into their new housing.[66]

My daughter stayed at a friends for 2 nights…. And brought home bedbugs!! She has bites from the top of her head to her feet. The itching must be horrific. Poor child. After 2 days of not being able to stop the itching, as a last resort (on a Sun at 11pm) I told her to use a bathroom spray cleaner that had bleach in it. She only put it on her legs, but the itching stopped there, just not on arms, stomach or in her head. Don’t recommend bleach but she was able to get a couple hours of sleep. I will try several things to try to help her that I have read from previous comments. Thanks everyone….
 Adult bed bugs are about 3/16” long and reddish-brown, with oval-shaped, flattened bodies. They are sometimes mistaken for ticks, cockroaches, carpet beetles or other household insects. The immature bed bugs (nymphs) resemble the adults, but are smaller and lighter in color. Bed bugs do not fly, and they don’t jump like fleas do ― but they can crawl rapidly over floors, walls, ceilings and other surfaces. Adult females lay their eggs in secluded places, depositing 1, 2 or more eggs per day, potentially hundreds during their lifetime. The eggs are tiny (about the size of a dust spec), whitish and hard to see without magnification, especially on light-colored surfaces. When first laid, the eggs are sticky, causing them to adhere to surfaces. At room temperatures, bed bug eggs hatch in about a week. Newly emerged nymphs are straw-colored and no bigger than a pinhead.
Maybe before you go fear mongering, you should at least Google whatever your about to say that makes you look bad? First read above. Second to answer your question how did you say it….. oh yes ……. Is the blood cleaned by the bed bug when sucked up from infected people? Well the answer is yes and no. HIV can’t live very long at all once the blood has been exposed to air much less been digested by something(ick).
Bedbugs may enter your home undetected through luggage, clothing, used beds and couches, and other items. Their flattened bodies make it possible for them to fit into tiny spaces, about the width of a credit card. Bedbugs do not have nests like ants or bees, but tend to live in groups in hiding places. Their initial hiding places are typically in mattresses, box springs, bed frames, and headboards where they have easy access to people to bite in the night.