The Mold In Dr. Florey's Coat (2004)

Standard textbooks credit one Alexander Fleming for the discovery and development of penicillin. In fact, the story behind the world's first antibiotic was a 12-year saga involving the tireless energies of several brilliant minds. Lax adeptly chronicles the triumphs of visionary researchers in a shoestring-budget laboratory as well as the seething jealousies of academic rivals and greedy pharmaceutical firms, giving a little-known story an invigorating, uh, shot in the arm.