Dr. Harris’ research focus has centered around infectious disease immunopathology.  These areas have included studying Enterococcus cecorum in broiler chickens as well as CD1-lipod immunology and vitamin A deficiency comorbidities in Mycobacterium tuberculosis infections in guinea pigs. This research, in addition to his pathology training, has provided skills in chromogenic and fluorescent immunohistochemistry development, multiplex immunohistochemistry, fresh-frozen tissue sectioning, nanostring gene analysis, digital imaging and histologic quantification via Visiopharm software. Dr. Harris’ pathology interests center around avian and reproductive pathology.