Our Fellows

First Year Fellows

CJ Voltaire, MD

Medical School: Emory University School of Medicine
Residency: St. Christopher’s Hospital for Children
Fellowship Year: 1

CJ Voltaire was born and raised in South Florida, went to Emory University for her medical education, and continued northward to Philadelphia for pediatric residency. She is interested in antimicrobial stewardship as well as the intersection between climate change and infectious diseases.

Mitchell Witkowski, D.O.

Medical School: Lake Erie College of Osteopathic Medicine (LECOM)
Residency: Riley Hospital for Children
Fellowship Year: 1

Dr. Witkowski grew up in Bolton, MA. He majored in Neuroscience with a minor in Psychology at Boston University before receiving his medical degree from Lake Erie College of Osteopathic Medicine. He graduated from Indiana University Pediatric Residency prior to starting fellowship at Emory. He enjoys hiking, film photography, and hanging out with his two rescue cats, Norbert & Nimbus.

Kristen Buehne, MD

Medical School: Duke University School of Medicine
Residency: University of Utah Pediatric Residency Program
Fellowship Year: 1

I grew up in St. Louis, MO, where my mom taught music (grades K-5) and my dad sold street sweepers. I moved to Durham, NC for college, and stayed throughout medical school for the community, opportunities, and southern food! I then traveled west for residency in Salt Lake City, UT, where I discovered both mountains and my love for infectious disease. I am excited for my next move to Atlanta and am currently interested in congenital infections and antibiotic stewardship.

Second Year Fellows

Sallie Lin, MD

Medical School: University of Mississippi School of Medicine
Residency: University of Florida/Pediatric Residency Program
Fellowship Year: 2

Dr. Sallie Lin grew up in Vicksburg, MS. She has majored in Biological Engineering with a concentration in Biomedical Engineering and minored in Chemistry at Mississippi State University. She received her Medical Degree at University of Mississippi Medical Center in 2021, and graduated from Pediatric Residency at University of Florida in 2024. Being passionate for medical education, she studied and completed a Certificate in Graduate Instructional Design at University of Florida during her Residency. She aspires to incorporate her artistic talents in the 2024-2027 fellowship program in the Department of Pediatrics, Division of Pediatric Infectious Diseases at Emory University, Georgia.

Third Year Fellows

Collin H. Dubick, MD

Medical School: University of Kentucky
Residency: Emory University
Fellowship Year: 3
Interests: Tuberculosis, vector-borne disease, global health, nutrition

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