Allergy and Immunology Fellowship

Program Overview

The 2-year Sidney Kimmel Medical College at Thomas Jefferson University (TJU) Allergy and Immunology Fellowship Training Program, affiliated with Nemours Children’s Hospital, Delaware and accredited by the Accreditation Council for Graduate Medical Education (ACGME), provides knowledge and skills to pursue a career as a specialist treating children and adults with allergy, asthma and immune system disorders.

You will be exposed to a diverse patient population of all ages, in a wide range of clinical settings. You will also have support and encouragement to pursue basic science and clinical research efforts.

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Our Fellowship Program 

Mission: We strive to be the best Allergy and Immunology program in the country, to provide a wide range of clinical and research experiences to our fellows and to help them develop habits that will forever engage them in life-long learning.

The Sidney Kimmel Medical College at Thomas Jefferson University (TJU) program stimulates critical thinking and can help prepare you with the necessary knowledge and skills to pursue a career as a specialist in the field. Based at Thomas Jefferson University in Philadelphia, Pa., and Nemours Children’s Hospital, Delaware, the two-year program gives you balanced clinical and research experiences in pediatric and adult allergy, asthma and immunology.


Academic Experience

You will gain experience with the evaluation and management of a wide variety of allergy and immunology diagnoses. Throughout your fellowship, you will attend weekly educational conferences that include a series of didactic lectures to provide you with a thorough foundation in Allergy/Immunology board-relevant topics and a chance to present and review interesting patient cases. You will also have the opportunity to closely collaborate with multiple subspecialty teams, including Blood and Bone Marrow Transplant and Gastroenterology, during joint case conferences. Our annual fellows’ curriculum for participants in all programs includes instruction on research design, IRB navigation, grant writing, statistics, career and financial planning, teaching, communication, leadership, resiliency and wellness.

You will be provided with the necessary tools to prepare for the American Board of Allergy and Immunology exam as evidenced by the ongoing success of our fellows on these exams. During your 2 years, you will rotate every four weeks on core rotations that will provide you with the necessary pediatric and adult clinical experience and research opportunities for a successful career in Allergy/Immunology. You will play an active role in educating and training residents and will supervise medical students from Sidney Kimmel Medical College and other area medical schools.

We believe in the value of significant and meaningful research as a key component in fellowship training. You will have access to state-of-the-art research facilities and resources, along with faculty mentorship, in order to meet your research goals. You will also have the opportunity and support to participate in multiple regional, national and international conferences. 


Clinical Experience

You will care for adult and pediatric patients with a wide range of Allergy and Immunology diagnoses including but not limited to: asthma, food and environmental allergies, atopic dermatitis, contact dermatitis, eosinophilic disorders, urticaria, angioedema, drug allergy, anaphylaxis, autoimmune diseases, hymenoptera allergy, immune deficiency and transplant-immunology. Clinical sites include inpatient and ambulatory settings at Thomas Jefferson University Hospital and Nemours/Alfed I. Nemours Children’s Hospital, Delaware.

You will have the opportunity to perform food allergy testing and challenges, drug allergy testing, challenges and desensitizations, allergen immunotherapy prescription writing and allergen immunotherapy mixing. You will gain exposure to spirometry, pulmonary function testing and rhinolaryngoscopy. In addition,  Nemours Children’s Hospital, Delaware is the only referral center in the state of Delaware for newborn SCID screening.

You will have voluntary opportunities to participate in related clinical rotations such as otolaryngology, pulmonology, dermatology, infectious disease and rheumatology. You will also be able to refine your teaching skills by interacting with residents and medical students at both academic centers.

Apply Today

Application Requirements

Deadline: September 1, 2025

Training Begins: July 1, 2026

Accepting Applications in Summer 2025

1. Submit application electronically using ERAS

2. Resume

3. Personal statement

4. Medical school transcript

5. USMLE/COMLEX scores (all 3 levels)

6. Three letters of recommendation

7. Internal Medicine, Pediatrics or Med/Peds Residents accepted

Questions About Applying?

Lindsey Killian
Fellowship Coordinator
(302) 651-5946
lindsey.killian@nemours.org

Gretchen Harmon, MD
Program Director
gretchen.harmon@nemours.org