Johns Hopkins All Children's Hospital

Meet Our Infectious Diseases Team

Allison Messina, MD Infectious Disease

Dr. Messina is the chief of the Division of Infectious Disease at Johns Hopkins All Children's Hospital. She joined the pediatric infectious disease program in 2006. A graduate of Vanderbilt University School of Medicine, she completed her pediatric residency at University of Texas-Southwestern Medical Center/Children's Medical Center, Dallas, followed by a pediatric infectious diseases fellowship at UT/Southwestern Medical Center. She was a staff pediatrician at Children's Medical Center Dallas. Dr. Messina was named Johns Hopkins All Children’s Hospital physician of the year in the 2019 Johns Hopkins Medicine Clinical Excellence Awards.
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Fernando Bula Rudas, MD Infectious Disease

Dr. Fernando Bula is a physician in the infectious disease program at Johns Hopkins All Children’s Hospital. He joined the medical staff in 2021. Before joining our hospital, Dr. Bula practiced as a pediatric infectious disease specialist in Sanford Children's Hospital in Sioux Falls, South Dakota. He was also a pediatric clerkship director and an associate professor of pediatrics at the University of South Dakota Sanford School of Medicine.
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Juan Dumois, MD Infectious Disease

Dr. Dumois is a Pediatric Infectious Diseases physician at Johns Hopkins All Children's Hospital. He joined the Hospital in 1993. He helps treat children with a variety of infectious diseases and is the director of our International Adoption Clinic. Dr. Dumois received his medical degree from the University of South Florida College of Medicine and completed his pediatric residency at All Children's Hospital/USF, serving as chief resident. He completed his fellowship in pediatric infectious disease at Children's National Medical Center, Washington, D.C. in a joint program with the National Institutes of Health. He was awarded the Johns Hopkins All Children’s Hospital Physician of the Year Clinical Award in 2016.
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Jorge Lujan-Zilbermann, MD Infectious Disease

Dr. Lujan-Zilbermann is a physician in the infectious disease program at Johns Hopkins All Children’s Hospital. He joined the medical staff in 2019 and primarily sees patients on the main campus in St. Petersburg. He is board certified in pediatrics, pediatric infectious diseases and is also a certified principal investigator for clinical trials.
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Matthew Thomas, MD Infectious Disease

Dr. Thomas specializes in pediatric infectious diseases in the Department of Medicine. He serves as an assistant residency program director and is co-director of the academic coaching program within the residency program. He is seeking a Master of Education in Healthcare Professions at Johns Hopkins University School of Education. His academic interests include faculty development around academic coaching strategies and teaching methods. He joined Johns Hopkins All Children’s Hospital in 2016, after completing a fellowship in Pediatric Infectious Diseases at the University of Miami School of Medicine/Jackson Memorial Hospital. Before that, he completed his Pediatrics training and chief residency at West Virginia University/Charleston Area Medical Center. 
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