1. From the University of New Mexico, Albuquerque (K.P., E.T., K.T., K.W.); Johns Hopkins University, Baltimore (M.T.M., R.T.V., M.W., K.E.R., G.M., W.O.O., M.F., A.L.C.), the Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases (S. Chang, R.G.), and the Emmes Company (M.R.W.), Rockville, and the Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda (M.G.G., T.J.L.) — all in...