Spero Therapeutics fetches $30 mln Series A Posted on June 8, 2015 at 12:59 am.Written by Spero Therapeutics Post navigation Spero Therapeutics Raises $30M Series A, Plans Antibiotic Clinical Trials in 2016Merck & Co. (MRK), New England Patriots Owner Wager $30 Million on Cambridge Startup, Spero
