"Bella, a dog trained to sniff out bed bugs, demonstrates her skills at a two-day conference on eradicating the hardy critters, in a suburb of Chicago. Nearly eliminated in the US a few decades ago, bedbugs are back with a vengeance. They've overtaken college dorms, military barracks, apartment complexes, office buildings and even forced the closure of Niketown's flagship New York store."
Picture: AFP/GETTY
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