Michael Z. Levy, Ph.D, Center for Clinical Epidemiology and Biostatistics (image) University of Pennsylvania School of Medicine Share Print E-Mail Caption A new study from Penn Medicine epidemiologists that looked at four years of bed bug reports to the city of Philadelphia found that infestations have been increasing and were at their highest in August and lowest in February. Credit Robert Press/Penn Medicine Usage Restrictions None Share Print E-Mail 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.