About Ana Weil, MD, MPH

Dr. Ana Weil is originally from Fairbanks, Alaska and attended UC Berkeley as an undergraduate. She  worked in infectious disease research in Africa for several years prior to obtaining an MPH from Johns Hopkins School of Public Health, and later attended medical school at Tufts University. Ana is a physician-scientist in the Infectious Diseases Division with a focus on enteric diseases and oral vaccines. Her research is supported by a mentored career development award from the NIH. Her current interests are understanding the gut microbiome influence on susceptibility to enteric infections, modulation of immune responses by the gut microbiome, and pathogen-gut microbe interactions at the mucosal surface.




Department of Infectious Diseases
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-724-2087

Medical Education

  • MPH, Johns Hopkins University School of Public Health
  • MD, Tufts University School of Medicine
  • Residency, Massachusetts General Hospital
  • Fellowship, Massachusetts General Hospital

American Board Certifications

  • Internal Medicine, American Board of Internal Medicine
  • Infectious Disease, American Board of Internal Medicine


           My work is focused on the relationship between the human gut microbiome and susceptibility to enteric infections. By studying cohorts of cholera and their household contacts, I investigate the functional relationships between gut microbial communities and enteric diseases, including identification of gut species that may protect against infection, relationships between gut microbial species and mucosal immune responses, and defining how the gut microbiota may influence immune responses to V. cholerae infection and vaccination. My long-term plans include study of interactions between the host, the environment, and enteric pathogens. Outside of research, I have held several leadership positions in medical education, including as a faculty advisor for an elective course at Harvard Medical School. I am active in mentoring aspiring doctors in both clinical practice and research.