Establishment of an ELISA-based primary antiviral screen and plaque reduction based confirmatory assay for evaluation of compounds against the filovirus ebola under maximum biological containment conditions (BL-4) : J.W. Huggins, Z.X. Zhang and T.P. Monath. Department of Antiviral Studies, Virology Division, U.S. Army Medical Institute of Infectious Diseases, Fort Detrick, Frederick, Maryland, 21701-5011, USA