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Alex H. Kral

Director, Urban Health Program

Alex Kral, PhD, is an infectious disease epidemiologist with expertise in community-based research with urban poor populations. He is currently principal investigator and coinvestigator on several NIH-funded studies of substance use, infectious diseases, and health, spanning a diverse set of methodological areas including survey research, qualitative observational research, intervention development and testing, geospatial analyses, policy, and genetics. Dr. Kral has authored and coauthored over 80 articles in peer-reviewed journals, including The Lancet, New England Journal of Medicine, Journal of the American Medical Association, American Journal of Epidemiology, American Journal of Public Health, AIDS, Addiction, and Drug and Alcohol Dependence.


PhD, Epidemiology, School of Public Health, University of California at Berkeley; MS, Epidemiology, Harvard School of Public Health, Harvard University; BA, Sociology, Georgetown University.

Latest Publications

Lynch, K.L., Shapiro, B.J., Coffa, D., Novak, S.P., & Kral, A.H. (2015). Promethazine use among chronic pain patients. Drug and Alcohol Dependence, 150 :92-97.
Hancock, D.B., Gaddis, N.C., Levy, J.L., Bierut, L.J., Kral, A.H., & Johnson, E.O. (2015). Associations of common variants in the BST2 region with HIV-1 acquisition in African American and European American people who inject drugs. AIDS, 29 (7):767-777.
Bluthenthal, R.N., Wenger, L., Chu, D., Lorvick, J., Quinn, B., Thing, J.P., & Kral, A.H. (2015). Factors associated with being asked to initiate someone into injection drug use. Drug and Alcohol Dependence, 149 :252-258.
Johnson, E.O., Hancock, D.B., Gaddis, N.C., Levy, J.L., Page, G., Novak, S.P., Glasheen, C., Saccone, N.L., Rice, J.P., Moreau, M.P., Doheny, K.F., Romm, J.M., Brooks, A.I., Aouizerat, B.E., Bierut, L.J., & Kral, A.H. (2015). Novel genetic locus implicated for HIV-1 acquisition with putative regulatory links to HIV replication and infectivity: A genome-wide association study. PLoS one, 10 (3):e0118149.
Davidson, P.J., Martinez, A., Lutnick, A., Kral, A.H., & Bluthenthal, R.N. (2015). Drug-related deaths and the sales of needles through pharmacies. Drug and Alcohol Dependence, 147 :229-234.
View all publications by Alex H. Kral (102)


  • Injection Drug Users
  • Urban Health
  • Epidemiology