Center for Anti-Infective Agents I am Dr. Ursula Theuretzbacher, a microbiologist, dedicating my professional life to supporting antibacterial drug R&D, improving the usage of anti-infectives to increase effectiveness, reduce harm, and combat resistance. Specializing in antibiotics and antifungals, I offer scientific expertise, international business and government R&D guidance, and information dissemination to clinical, research, and policy bodies.