Dan Werb




Dan Werb, PhD, is an epidemiologist and policy analyst with expertise in overdose, Human Immunodeficiency Virus (HIV), addictions, and drug policy. Dr. Werb is a Research Scientist at the Li Ka Shing Knowledge Institute (LKSKI) at St. Michael’s Hospital in Toronto. He is also an Assistant Professor in the Division of Infectious Diseases & Global Public Health at the University of California, San Diego. Dr.Werb is Director of the Centre on Drug Policy Evaluation, a recognized global leader in cutting edge policy research and communications. Dr. Werb has published dozens of studies on issues related to health policy and addictions, with a focus on preventing the transition of street youth into injection drug use, as well as on identifying the impact of policy and public health interventions on street-based drug-using populations.

Please note: Dr. Werb is not taking any summer students.


Recent Publications

  1. Bowles, JM, McDonald, K, Maghsoudi, N, Thompson, H, Stefan, C, Beriault, DR et al.. Xylazine detected in unregulated opioids and drug administration equipment in Toronto, Canada: clinical and social implications. Harm Reduct J. 2021;18 (1):104. doi: 10.1186/s12954-021-00546-9. PubMed PMID:34645480 PubMed Central PMC8511847.
  2. Meyers-Pantele, SA, Jain, S, Sun, X, Marks, C, DeBeck, K, Hayashi, K et al.. Gender and the first-time provision of injection initiation assistance among people who inject drugs across two distinct North American contexts: Tijuana, Mexico and Vancouver, Canada. Drug Alcohol Rev. 2021; :. doi: 10.1111/dar.13390. PubMed PMID:34636100 .
  3. Bowles, JM, Jain, S, Sun, X, Strathdee, SA, DeBeck, K, Milloy, MJ et al.. Investigating a bidirectional relationship between overdose and provision of injection initiation assistance among persons who inject drugs in Vancouver, Canada and Tijuana, Mexico. Int J Drug Policy. 2021;95 :103398. doi: 10.1016/j.drugpo.2021.103398. PubMed PMID:34390966 PubMed Central PMC8530890.
  4. Marks, C, Meyers, SA, Jain, S, Sun, X, Hayashi, K, Gonzalez-Zuniga, P et al.. Involvement of people who inject drugs in injection initiation events: a cross-sectional analysis identifying similarities and differences across three North American settings. BMJ Open. 2021;11 (8):e046957. doi: 10.1136/bmjopen-2020-046957. PubMed PMID:34385244 PubMed Central PMC8362731.
  5. Marks, C, Bouck, Z, Jain, S, Sun, X, Strathdee, SA, Vickerman, P et al.. The impact of recent homelessness on the provision of injection drug use initiation assistance among persons who inject drugs in Tijuana, Mexico and Vancouver, Canada. Drug Alcohol Depend. 2021;225 :108829. doi: 10.1016/j.drugalcdep.2021.108829. PubMed PMID:34237582 .
  6. Kitchen, SA, McCormack, D, Werb, D, Caudarella, A, Martins, D, Matheson, FI et al.. Trends and outcomes of serious complications associated with non-fatal opioid overdoses in Ontario, Canada. Drug Alcohol Depend. 2021;225 :108830. doi: 10.1016/j.drugalcdep.2021.108830. PubMed PMID:34182376 .
  7. Scheim, AI, Sniderman, R, Wang, R, Bouck, Z, McLean, E, Mason, K et al.. The Ontario Integrated Supervised Injection Services Cohort Study of People Who Inject Drugs in Toronto, Canada (OiSIS-Toronto): Cohort Profile. J Urban Health. 2021;98 (4):538-550. doi: 10.1007/s11524-021-00547-w. PubMed PMID:34181179 PubMed Central PMC8237772.
  8. Bernstein, SE, Amirkhani, E, Werb, D, MacPherson, D. Reprint of: The regulation project: Tools for engaging the public in the legal regulation of drugs. Int J Drug Policy. 2021;91 :103279. doi: 10.1016/j.drugpo.2021.103279. PubMed PMID:34024456 .
  9. Marks, C, Pearson, JL, Zúñiga, ML, Martin, N, Werb, D, Smith, LR et al.. Articulating the Trauma-Informed Theory of Individual Health Behavior. Stress Health. 2021; :. doi: 10.1002/smi.3068. PubMed PMID:34009751 .
  10. Meyers, SA, Earnshaw, VA, D'Ambrosio, B, Courchesne, N, Werb, D, Smith, LR et al.. The intersection of gender and drug use-related stigma: A mixed methods systematic review and synthesis of the literature. Drug Alcohol Depend. 2021;223 :108706. doi: 10.1016/j.drugalcdep.2021.108706. PubMed PMID:33901753 PubMed Central PMC8168566.
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Affiliations & Other Activities

  • Assistant Professor, Division of Global Public Health, University of California San Diego Director, International Centre for Science in Drug Policy