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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.
Bluthenthal, R.N., & Kral, A.H. (2015). Next steps in research on injection initiation incidence and prevention. Addiction, 110 (8):1258-1259.
Lutnick, A., Harris, J., Lorvick, J., Cheng, H., Wenger, L.D., Bourgois, P., & Kral, A.H. (2015). Examining the Associations Between Sex Trade Involvement, Rape, and Symptomatology of Sexual Abuse Trauma. Journal of Interpersonal Violence, 30 (11):1847-1863.
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, .
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.
View all publications by Alex H. Kral (105)


  • Injection Drug Users
  • Urban Health
  • Epidemiology