Dr. Chan's research aims to advance child health in underserved populations by using epidemiologic methods to discover and deliver evidence-based interventions. In partnership with the Ethiopian Public Health Institute, she leads HaSET (“happiness” in Amharic), a program for maternal and child health research in Ethiopia. With colleagues at St. Paul’s Hospital Millennium Medical College, her team established a health and demographic surveillance system in rural Ethiopia to better understand the causes of maternal and child morbidity and mortality.

Research projects focus on understanding the etiologies and causes of neonatal sepsis, antimicrobial resistance patterns among pregnant women and their newborns, and the mechanisms for adverse birth outcomes. Collaborating with the World Health Organization, she is developing strategies to accelerate effective implementation of Kangaroo Mother Care for preterm newborns and designing studies to develop modified antibiotic regimens for hospitalized newborns. She has evaluated newborn survival projects and trained health care workers on essential newborn care practices in India, Indonesia, Tanzania, and Ethiopia. Prior to joining Harvard, she was an NIH Clinical Research Scholar at Johns Hopkins where she collaborated with the International Centre for Diarrheal Disease Research in Bangladesh to estimate the risk of early-onset neonatal sepsis from maternal infections in Dhaka.

For more information, see https://scholar.harvard.edu/chan.


Dr. Chan is a graduate of Harvard College and Harvard Medical School. She trained in pediatrics in the Boston Combined Residency Program. Following residency, she completed her PhD and post-doctoral work at Johns Hopkins School of Public Health and a research fellowship at ICDDR, B.

Selected Publications

  1. Chan GJ, Moulton LH, Becker S, Muñoz A, Black R. Non-specific effects of diphtheria-tetanus-pertussis vaccination on child mortality in Cebu, The Philippines. International Journal of Epidemiology, 2007; 36(5):1022-1029.
  2. Chan GJ, Parco K, Sihombing M, Tredwell S, O’Rourke E. Improving health services to displaced persons in Aceh, Indonesia: A Balanced Scorecard. Bulletin of the World Health Organization, 2010; 88(9):709-712.
  3. Chan GJ, Lee AC, Baqui AH, Tan J, Black RE. Risk of early-onset neonatal infection with maternal infection or colonization: a global systematic review and meta-analysis. PLoS medicine, 2013; 10(8):e1001502. Epub 2013/08/27.
  4. Chan GJ, Modak JK, Mahmud AA, Baqui AH, Black RE, Saha SK. Maternal and neonatal colonization in Bangladesh: prevalences, etiologies and risk factors. Journal of perinatology, 2013; Epub 2013/08/31.
  5. Chan GJ, Baqui AH, Modak JK, Murillo-Chaves A, Mahmud AA, et al. Early-onset neonatal sepsis in Dhaka, Bangladesh: risk associated with maternal bacterial colonization and chorioamnionitis. Trop Med Int Health, 2013; 18: 1057-1064.
  6. Chan GJ, Stuart EA, Zaman M, Mahmud AA, Baqui AH, Black RE. The effect of intrapartum antibiotics on early-onset neonatal sepsis in Dhaka, Bangladesh: A propensity score matched analysis.BMC Pediatrics, 2014; 14:104