2015 Career Achievement Medal Recipient: Hyun Soon Lillehoj Tags: 2015 Sammies Back to All Videos Hyun Soon Lillehoj, an international leader in animal immunology and genomics, has made pioneering scientific discoveries that have helped prevent and treat diseases in commercial poultry, protecting the health of consumers and saving the industry billions of dollars. During three decades as a molecular biologist at the USDA’s Agricultural Research Service, Lillehoj has helped mitigate the use of antibiotics in poultry, finding that certain food supplements, probiotics, nutrients and vaccines can replace antibiotics as an effective means of enhancing the immune system and fighting common parasitic diseases and bacterial infections.