Dead Bees (IMAGE) Penn State Caption The image shows honey bees affected by deformed wing virus after a mite infestation. In the past decade, honey bee populations have experienced severe and persistent losses across the Northern Hemisphere, mainly due to the effects of pathogens. Credit Fabio Del Piccolo, Università degli Studi di Udine Usage Restrictions Non commercial use only 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.