Leyao Wang, PhD, MPH

Instructor in Medicine, Division of Pulmonary and Critical Care Medicine


  • Ph.D., Microbiology: Fudan University, Shanghai, China (2008)
  • Postdoctoral Fellow, Viral Oncology: Johns Hopkins Medical Institute, Baltimore, MD (2010)
  • MPH, Epidemiology: Johns Hopkins Bloomberg School of Public Health, Baltimore, MD (2011)
  • Postdoctoral Fellow, Genetic Epidemiology: Yale School of Public Health, New Haven, CT (2017)


  • Ruth L. Kirschstein National Research Service Award (NRSA) Individual Postdoctoral Fellowship, NIH-NIAID (2015-2017)
  • Travel award for the Symposium on Advances in Genomics, Epidemiology, and Statistics, Philadelphia, PA (2016)
  • Scholarship for the 57th Human and Mammalian Genetics and Genomics short course, Bar Harbor, ME (2016)

Research Interests

Dr. Wang’s research focuses on the interaction of environmental and genetic factors in determining complex disease susceptibility, particularly asthma. The rising incidence of asthma over the last decades implies a conflict between changing environment and the evolving human genome. Her study aims to evaluate the impact of diverse environmental exposures on the airway microbial community and consequently how the altered commensal microbiome modulates genetic factors for asthma risk. With this, Dr. Wang currently works towards:

  • Developing family-based asthma cohort to identify rare/common genetic factors as well as specific bacterial species underlying asthma development/exacerbations.
  • Investigating the relationship between indoor microbial exposure with nasal microbiome in children with RSV bronchiolitis.
  • Establishing collaborations, especially for time-sensitive environmental exposures on the disturbance of human commensal microbiome and lung health.