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Pediatric Infectious Diseases Fellowship Program

Meet the Fellows


Current Fellows

  • Afreen Abraham, MBBS

    Afreen Abraham, MBBS


    I was born and brought up in a military family in India. We moved around India every few years and so I am a mixture of different Indian cultures. After completing my medical school there, I came to the US to do my Pediatrics Residency at Southern Illinois University. My interest for infectious diseases stems out of the variety it encounters, and what could be a better place to explore that more than at St. Jude. Outside work I enjoy driving, traveling, hiking, making crafts and listening to music. I am looking forward to exploring Memphis and the opportunities at St. Jude and Le Bonheur.

  • Ellie Bittle, MD

    Ellie Bittle, MD


    Grew up in Fort Worth, TX. Attended university there and then left the country for medical school in Grenada. I spent 2 years in Atlanta, GA for clinical rotations before matching into residency back in Texas. Pediatric Infectious Diseases and Global Health have been the long-term goals since deciding to pursue a career in medicine.

  • Sandra Castejón Ramirez, MD

    Sandra Castejón Ramirez, MD


    I was born and raised in Madrid, Spain, and went to medical school at the University of Navarra where I started to fall in love with Infectious Diseases and Microbiology. After medical school, I did two years of Microbiology and afterwards I went to Zaragoza to train as a pediatrician. After this, I decided I wanted to continue my clinical and research training in Infectious Diseases and now I am here in Memphis. I have been doing volunteer work first as a student and after as a physician in Sierra Leone since 2012 and this is how I also became interested in Global Health and HIV. Outside the hospital, I enjoy travelling, reading poetry, cooking and playing the guitar and ukulele with my husband.

  • Kate Shapiro, MD

    Kate Shapiro, MD


    I was born and raised in New Jersey. I received my BA in Psychology from Yeshiva University. I attended medical school at the Renaissance School of Medicine at Stony Brook University and completed residency training in Pediatrics at Stony Brook Children's Hospital. After spending 12 years in New York, my family and I moved to Memphis, Tennessee where I am doing my fellowship training in pediatric infectious disease at St. Jude and Le Bonheur Children's Hospital. I also have a passion for clinical breastfeeding medicine because of its role in infection prevention and immune system development in the infant. Some of my other academic interests include evidence-based medicine, research design, and infections in children with sickle cell disease.

  • Melissa A. Shenep, MD

    Melissa A. Shenep, MD


    I was born and raised in Memphis. I attended Emory University for undergraduate and UTHSC for medical school. I was between veterinary medicine and pediatric infectious diseases before going to medical school and now cannot wait to be a veterinarian...just kidding! I fell in love with infectious diseases from an early age as my father was an Infectious Diseases specialist at St. Jude. I loved the puzzles and complexity of cases seen throughout the field. Additionally, it was while working at St. Jude during random summers and the year before medical school that I also began to really appreciate the impact that research in the infectious diseases field can make across healthcare. Outside the hospital, I enjoy walking my dogs (and other people's dogs), kickboxing, and traveling--especially to outdoor areas where you can hike and white-water raft. I cannot wait to continue my journey in Memphis at my forever second home, St. Jude Children's Research Hospital!