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Bedbugs: Easy to Attract, Hard to Eliminate

FRIDAY, Feb. 8 (HealthDay News) -- Death, taxes ... and bedbugs?

Infestations of bedbugs are on the rise in the United States and elsewhere, and while people are "bedbug magnets," the tiny pests are hard to detect, an expert says.

One in five Americans has had a bedbug infestation in their home or knows someone who has encountered bedbugs, according to the National Pest Management Association.

You may not have seen any in your home, but that doesn't mean they're not there, said Dr. Jorge Parada, medical director of the infection control program at Loyola University Health System in Maywood, Ill.

"Look closely because bedbugs are very hard to see," Parada said in a university news release. "Bedbugs love to hide in the cracks and crevices associated with mattresses, cushions, bed frames and other structures. They are rarely seen out in the open or on the resting surface of beds or chairs."

"Bedbugs are champions of hide-and-seek. It is not uncommon to miss the bedbugs altogether, so also look for telltale signs of bedbug infestation," he added. "These may be suspected if specks of blood or feces are found on the linens, mattresses or behind wallpaper."

"Bedbugs are sometimes described as appearing like an apple seed," Parada said.

Adult bedbugs range in size from five to seven millimeters (less than one-quarter of an inch), while juveniles may be as small as 1.5 mm (one-sixteenth of an inch).

"With feeding, they enlarge, or engorge, with blood," Parada said. "The adults turn from more brown to more red in color, while the translucent nymphs may become bright red."

Bedbugs typically bite at night on exposed areas of skin such as the face, neck, hands and arms. The bite itself is painless and can look like other insect bites.

"Clues that can suggest the presence of bedbugs include finding red, itchy bites upon awakening -- especially if the bites line up in a row on the skin," Parada said. "However, while some people develop a bite reaction immediately, others may take two to three days before a reaction becomes noticeable, and not all people react to bites."

He noted that a bedbug bite can look like a tiny puncture wound without a surrounding reaction, and can easily be missed. Thirty percent of people living in bedbug-infested homes don't report bites or skin reactions.

However, "other people have exuberant reactions, with large, red, raised and itchy welts," Parada said. "This is especially true if one becomes sensitized to bedbug bites, so that with repeated bites there may be an exaggerated reaction to the bite."

Eliminating bedbugs is not something you can do yourself. "Bedbugs are notoriously difficult to eradicate and there is good reason to get professional help from qualified pest professionals with expertise in treating bed bugs," Parada advised.

More information

The U.S. Centers for Disease Control and Prevention has more about bedbugs.

-- Robert Preidt

SOURCE: Loyola University Health System, news release, Jan. 30, 2013

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