 CAMBRIDGE, Mass., March 03, 2021 GLOBE NEWSWIRE -- Spero Therapeutics, Inc. Nasdaq: SPRO, a multi-asset clinical-stage biopharmaceutical company focused on identifying, developing and commercializing treatments in high unmet need areas involving multi-drug resistant bacterial infections and rare diseases, today announced that it will host a conference call and live audio webcast on March 11, 2021 at 4:30 p.m. EST to report its fourth quarter and full-year 2020 financial results and provide an update on its business and pipeline. 