Bees on a Hive (2 of 2) (IMAGE) Penn State Caption Researchers at Penn State and Georgia Tech found that honey bees use different sets of genes, regulated by two distinct mechanisms, to fight off viruses, bacteria and gut parasites. Credit Bernardo Niño, Penn State 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.