Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.|Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.|Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.|Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.|Department of Microbiology, Hebrew University, Jerusalem 91120, Israel.|Department of Microbiology, Hebrew University, Jerusalem 91120, Israel.|Department of Applied Mathematics and Statistics.