Meet Our Team

Dr. Walter is the division chief of the USF/Johns Hopkins All Children’s Pediatric Allergy & Immunology program, and the Robert A. Good Endowed Chair in the USF Division of Pediatric Allergy & Immunology. She is an associate professor of pediatrics and molecular medicine in the University of South Florida Morsani College of Medicine. She serves as director of the Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies at Johns Hopkins All Children’s.

Dr. Leiding is an immunologist and allergy specialist for the USF Pediatric Allergy/Immunology Program at Johns Hopkins All Children's Hospital and the University of South Florida (USF) Morsani College of Medicine, where she is an associate professor of pediatrics. Dr. Leiding's research interests include understanding the etiology of auto-inflammation in chronic granulomatous disease and primary immunodysregulatory disorders. Dr. Leiding has specific clinical expertise in the diagnosis and treatment of patients with chronic granumolmatous disease and primary immunodeficiencies associated with immunodysregulation particularly patients signal transducer and activator of transcription (STAT)–gain of function (GOF) mutations.

Dr. Sher is an allergy and immunology specialist for the USF Pediatric Allergy/Immunology Program at Johns Hopkins All Children's Hospital and the University of South Florida Morsani College of Medicine, where he is a professor of pediatrics and internal medicine. Dr. Sher earned his medical degree from Northwestern University. He trained as a pediatric resident at Duke University and Boston Children's Hospital. He completed a fellowship in adolescent medicine at Boston Children's before completing fellowships in pediatric rheumatology and allergy and immunology at the University of Michigan Medical School.

Dr. Sriaroon is the medical director of the outpatient USF Allergy/Immunology clinic at Johns Hopkins All Children’s Hospital and the director of the USF Pediatric Allergy/Immunology fellowship training program. She is an associate professor of internal medicine and pediatrics at the University of South Florida (USF) Morsani College of Medicine.