Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Amendment No. 1 to Registration Statement No. 333-274520 on Form S-1 of our report dated March 31, 2023 relating to the financial statements of Vaccinex, Inc. (“the Company”), appearing in the Annual Report on Form 10-K of the Company for the year ended December 31, 2022. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ Deloitte & Touche LLP

Rochester, New York

September 26, 2023