Spero Therapeutics Catches Roche’s Eye with a New Way to Target Drug-Resistant Bacterial Infections Posted on April 9, 2014 at 1:03 am.Written by Spero Therapeutics Post navigation Spero Emerges with $3M, Backing from Roche, and Plans to Disarm BugsAtlas Venture’s Newest Stab at an Antibiotics Biotech Comes Out of Stealth