Director of Infectious Diseases
Mary Hayden is an expert in epidemiology, infection prevention, antibiotic resistance and emerging infectious diseases. Her recent projects have investigated factors associated with transmission of SARS-CoV-2 in healthcare settings and enterobacterales and Candida auris in long-term care facilities. She also is director of the Division of Clinical Microbiology and RUSH Medical Laboratories. She is co-principal investigator of the Regional Innovative Public Health Laboratory at RUSH.
Infectious Diseases in Children
Colleen Nash is division chief of pediatric infectious diseases and an expert in antibiotic resistance, neonatal infections, infections in immune-compromised children and public health issues. Among her research topics are COVID-19 and the proper use of antimicrobials.
Hospital Epidemiologist | Infection Prevention
John Segreti is the medical director of infection control and prevention at RUSH. He has expertise in preventing the spread of infectious diseases, including COVID-19. He also is an expert in bone and joint infections, blood-stream infections and the use of antibiotics.