[1] NIAID, Lab Clin Infect Dis, NIH, Bethesda, MD 20892 USA
[2] Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
[3] Univ Calif San Diego, Dept Pharmacol, La Jolla, CA 92093 USA
[4] Vet Affairs Healthcare, Dept Infect Dis, San Diego, CA 92161 USA