Author Affiliations +
Soon S. Park,1 Hyun S. Lillehoj,1 Patricia C. Allen,1 Dong Woon Park,1 Steve FitzCoy,2 Daniel A. Bautista,3 Erik P. Lillehoj4
1Animal Parasitic Diseases Laboratory, ANRI, BARC, USDA-ARS, Beltsville, Maryland 20705, U.S.A
2Schering-Plough Animal Health, Millsboro, Delaware 19966, U.S.A
3Lasher Poultry Diagnostic Laboratory, University of Delaware, Georgetown, Delaware 19947, U.S.A
4Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland 21201, U.S.A