Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the Registration Statement:
of our report dated March 30, 2023, with respect to the financial statements of Icosavax, Inc. included in this Annual Report (Form 10-K) of Icosavax, Inc for the year ended December 31, 2022.
/s/ Ernst & Young LLP
Seattle, Washington
March 30, 2023