Navidea Biopharmaceuticals (NAVB) S-8 Registration of securities for employees

Exhibit 23.2

Independent Registered Public Accounting Firm’s Consent

We consent to the incorporation by reference in this Registration Statement of Navidea Biopharmaceuticals, Inc. on Form S-8 of our report dated March 18, 2020, which refers to the adoption of new accounting standard ASU No. 2016-02, Leases (Topic 842), as amended, effective January 1, 2019, and which includes an explanatory paragraph as to the Company’s ability to continue as a going concern, with respect to our audits of the consolidated financial statements of Navidea Biopharmaceuticals, Inc. as of December 31, 2019 and 2018 and for the years then ended appearing in the Annual Report on Form 10-K of Navidea Biopharmaceuticals, Inc. for the year ended December 31, 2019.

/s/ Marcum llp

Marcum llp

New Haven, CT

November 13, 2020