1 Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA.
2 Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA; Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock, Lebanon, NH, USA; Dartmouth Cancer Center, Lebanon, NH, USA. Electronic address: yina@dartmouth.edu.