Barbara Haller

Barbara Haller, MD, PhD is a Professor at the University of California, San Francisco (UCSF), specializing in clinical microbiology and infectious diseases. Her research spans molecular diagnostics, pathogen discovery, and public health interventions against HIV/AIDS, tuberculosis, and emerging infections. Dr. Haller leads efforts in improving diagnostic accuracy for life-threatening infections such as meningitis and encephalitis through metagenomic sequencing and rapid testing innovations. She has contributed to global health initiatives in resource-limited settings, focusing on co-infections like HIV-TB and cryptococcal antigenemia in Uganda. Her work emphasizes infection control strategies, including novel hand hygiene protocols and optimized diagnostic algorithms to reduce hospital-acquired infections and streamline patient management. Dr. Haller collaborates across disciplines to translate molecular advancements into clinical practice, particularly in urban healthcare systems.

Her research portfolio includes over two decades of studies on antimicrobial resistance, viral epidemiology during pandemic responses, and innovative HIV screening approaches in emergency departments and labor wards. She has evaluated the impact of rapid diagnostic tools such as the GeneXpert MTB/RIF assay on tuberculosis triage efficiency. Dr. Haller’s contributions to resident training in microbiology and laboratory medicine further underscore her commitment to advancing diagnostic precision and workforce preparedness in infectious disease specialties.