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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

Howell, B.A., Guydish, J., Kral, A.H., & Comfort, M. (2015). Prevalence and factors associated with smoking tobacco among men recently released from prison in California: A cross-sectional study. Addictive Behaviors, 50 :157-160.
Hancock, D.B., Levy, J.L., Gaddis, N.C., Glasheen, C., Saccone, N.L., Page, G.P., Hulse, G.K., Wildenauer, D., Kelty, E.A., Schwab, S.G., Degenhardt, L., Martin, N.G., Montgomery, G.W., Attia, J., Holliday, E.G., McEvoy, M., Scott, R.J., Bierut, L.J., Nelson, E.C., Kral, A.H., & Johnson, E.O. (2015). Cis-expression quantitative trait loci mapping reveals replicable associations with heroin addiction in OPRM1. Biological Psychiatry, 78 (7):474-484.
Rade, C.B., Desmarais, S.L., Van Dorn, R.A., Lutnick, A., Kral, A.H., & Lorvick, J. (2015). Mental health correlates of drug treatment among women who use methamphetamine. American Journal on Addictions, 24 (7):646-653.
Hancock, D.B., Levy, J.L., Gaddis, N.C., Glasheen, C., Saccone, N.L., Page, G.P., Bierut, L.J., Kral, A.H., & Johnson, E.O. (2015). Replication of ZNF804A gene variant associations with risk of heroin addiction. Genes Brain and Behavior, Advance Online Publication .
Kral, A.H., Wenger, L., Novak, S.P., Chu, D., Corsi, K.F., Coffa, D., et al. (2015). Is cannabis use associated with less opioid use among people who inject drugs?. Drug and Alcohol Dependence, 153 :236-241.
View all publications by Alex H. Kral (109)


  • Injection Drug Users
  • Urban Health
  • Epidemiology