Elsa Treffeisen

Elsa Treffeisen, MD, MPH is an Attending Physician in the Division of Immunology at Boston Children's Hospital and an Instructor in Pediatrics at Harvard Medical School. She specializes in treating pediatric allergic and immunological conditions including

• Allergic Rhinitis
• Food Allergy
• Anaphylaxis
• Asthma
• Eczema

and provides care in English and Spanish.

Education

• Undergraduate: University of Pennsylvania (2012)
• Medical School: Sidney Kimmel Medical College (2017)
• Pediatrics Residency: Cohen Children's Medical Center (2020)
• Allergy & Immunology Fellowship: Boston Children's Hospital (2023)
• MPH: Harvard T.H. Chan School of Public Health (2024)

Dr. Treffeisen's research focuses on environmental and immunological factors affecting pediatric allergic diseases. Her work explores

• Climate change impacts on epithelial barrier disruption
• Immunogenomics of viral disease susceptibility
• Food allergy epidemiology
• Wound healing mechanisms

with publications in journals like J Allergy Clin Immunol and Science Advances.

She is board-certified in both Pediatrics and Allergy & Immunology, and participates in multidisciplinary care through collaborations with Dermatology, Nutrition, and Pulmonary programs at Boston Children's Hospital.