[1] Drexel Univ, Coll Med, Dept Microbiol & Immunol, Philadelphia, PA 19104 USA
[2] Drexel Univ, Coll Med, Inst Mol Med & Infect Dis, Ctr Mol Virol & Translat Neurosci, Philadelphia, PA 19104 USA
[3] Thomas Jefferson Univ, Sidney Kimmel Canc Ctr, Philadelphia, PA 19107 USA
[4] Drexel Univ, Sch Biomed Engn Sci & Hlth Syst, Philadelphia, PA 19104 USA