[1] Tufts Univ, Cummings Sch Vet Med, Dept Infect Dis & Global Hlth, North Grafton, MA 01536 USA
[2] US Army, Med Res Inst Chem Def, Aberdeen Proving Ground, MD 21010 USA
[3] Univ Calif Irvine, Dept Physiol & Biophys, Irvine, CA 92697 USA
[4] Tufts Univ, Cummings Sch Vet Med, Dept Clin Sci, North Grafton, MA 01536 USA
[5] US Army, Med Res Inst Infect Dis, Bacteriol Div, Ft Detrick, MD 21702 USA
[6] NYU, Sch Med, Dept Biochem & Mol Pharmacol, New York, NY 10016 USA