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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

Quinn, B., Chu, D., Wenger, L., Bluthenthal, R.N., & Kral, A.H. (2014). Syringe disposal among people who inject drugs in Los Angeles: The role of sterile syringe source. International Journal of Drug Policy, 25 (5):905-910.
Hammett, T.M., Phan, S., Gaggin, J., Case, P., Zaller, N., Lutnick, A., Kral, A.H., et al. (2014). Pharmacies as providers of expanded health services for people who inject drugs: a review of laws, policies, and barriers in six countries. Bmc Health Services Research, 14 :Article No. 261.
Martinez, A.N., Lorvick, J., & Kral, A.H. (2014). Activity spaces among injection drug users in San Francisco. International Journal of Drug Policy, 25 (3):516-524.
Arreola, S., Bluthenthal, R.N., Wenger, L., Chu, D., Thing, J., & Kral, A.H. (2014). Characteristics of people who initiate injection drug use later in life. Drug and Alcohol Dependence, 138 :244-250.
Wenger, L.D., Lopez, A.M., Comfort, M., & Kral, A.H. (2014). The phenomenon of low-frequency heroin injection among street-based urban poor: Drug user strategies and contexts of use. International Journal of Drug Policy, 25 (3):471-479.
View all publications by Alex H. Kral (91)