Word: allergen
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Dates: during 2000-2009
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...dust, a level known to trigger allergies, in 44 million homes. In half of these, they're fivefold higher, a significant danger for asthma sufferers. What to do? Keep room humidity low (mites love moisture), wash linens in hot water and zip up duvets and pillows in impermeable, allergen-proof covers. Alas, these measures won't safeguard you against yet another intruder: cockroach droppings are present in the beds of 6 million homes. Any sure solution? Extermination...