Dear All: On Wednesday 6 Sep at the ASM-ESCMID Conference on Antibacterial Development, we heard 3 superb back-to-back talks on the evolving regulatory and health technology assessment (HTA) landscape. The speakers (Marco Cavaleri, PhD, Head of Anti-Infectives and Vaccines, EMA; Sumati Nambiar, MD, Director, Division of Anti-infective Products, FDA; and Colm Leonard, MD, Consultant Clinical Adviser,