Healthcare workers and COVID-19 patients may experience psychological distress consequent to the pandemic, and are at particularly elevated risk for experiencing posttraumatic stress disorder (PTSD), based on evidence from previous infectious disease outbreaks. The best-validated treatment for PTSD is exposure therapy. Exposure therapy help patients suffering from PTSD to revisit and overcome their traumatic experiences. Including virtual reality in exposure therapy has a long history in treating PTSD; and has been used to treat military veterans and first-responders following 9/11. The investigators are developing and testing a virtual environment to treat PTSD including sub threshold PTSD symptoms in HCWs who experience occupational related trauma (e.g., working with COVID-19 patients) and COVID-19 patients. An independent evaluator will assess symptoms of PTSD and other psychopathology, using structured clinical interviews and self-report measures with well-established psychometric properties, at baseline, halfway through treatment, after completion of treatment, and at three-months post-treatment. Participants will complete ten ninety minute sessions (in-person or remotely), twice a week for five weeks aimed at mitigating their symptoms of PTSD. Remote participants will receive VR headsets after the baseline assessment and will keep them for the duration of the study. The pilot study will aim to demonstrate the feasibility and the tolerability of the virtual reality intervention in these populations.