Host Defense Program

The Infectious Disease and Hem/Onc/BMT departments at Nationwide Children’s have developed the country’s first Host Defense Program specifically designed to address the needs of immune-compromised patients. Our collaborative and comprehensive approach ensures that the unique needs of your patient will be reviewed and provided by fellowship-trained Host Defense Specialists, who are supported by an interdisciplinary team of experts in immune-compromised conditions.


The Host Defense Program provides individualized consultation services to immune-compromised patients in both inpatient and outpatient settings for a wide variety of specialties and conditions, including:

  • Non-malignant hematology
  • Oncology
  • Primary immunodeficiency
  • Hematopoietic stem cell transplantation
  • Solid organ transplantation
  • Inflammatory bowel disease
  • Patients with autoimmune or autoinflammatory conditions
  • Patients receiving immunomodulatory medications
NCH Blog Author

Monica I. Ardura

Monica I. Ardura, DO, is a member of the Section of Infectious Diseases at Nationwide Children's Hospital, medical director of the Host Defense Program at Nationwide Children's and assistant professor of Clinical Pediatrics at The Ohio State University College of Medicine.

Jeffery Auletta

Jeffery J. Auletta

Jeffery Auletta, MD, is the Director of the Blood and Marrow Transplant (BMT) Program and the Host Defense and Immunocompromised Infectious Diseases (HD) Program at Nationwide Children's Hospital.


For Providers 

Host Defense Program consultations are only available for Nationwide Children's physicians through an EPIC order. 

If you're a referring physician interested in a consult, please call: 614-722-4452.