Dr. Behrends' current work focuses on improving HIV and HCV testing and treatment for people who inject drugs in different settings (e.g., substance use disorder treatment programs, syringe exchange programs, etc) and improving strategies for preventing and reversing opioid overdose fatalities.  Dr. Behrends' research areas includes harm reduction services, public health, epidemiology of infectious diseases, health services research, and policy impact in the areas of substance use.