DIscarded Mattress (IMAGE) University of Massachusetts Amherst Caption A new study of bed bug infestation in the Chicago area by researchers at UMass Amherst and the University of Illinois reports observing a higher risk of bed bug infestation in poorer, crowded urban areas. Credit Charles Kremenak Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.