 Navidea Biopharmaceuticals, Inc. NYSE American: NAVB Navidea or the Company, a company focused on the development of precision immunodiagnostic agents and immunotherapeutics, today announced it will host a conference call and webcast on Wednesday, March 11, 2020 at 5:00 p.m. EDT to discuss financial results and corporate developments for the fourth quarter and full year ended December 31, 2019. 