 CAMBRIDGE, Mass., Nov. 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 Wednesday, November 10, 2021, at 4:30 p.m. ET to report its third quarter 2021 financial results and provide an update on its business and pipeline. 