Psychological Services (Mar 28, 2019). DOI:10.1037/ser0000343 Exposure to a major traumatic stressor increases the odds of negative mental health and maladaptive behavioral outcomes not only for victims but also for 1st responders and health care professionals who are exposed to the aftermath. This study investigates the extent to which psychological resilience acts as either a Protective (i.e., vaccine-like) or an Ameliorative (i.e., antibiotic-like) factor to reduce the deleterious mental health outcomes associated with exposure to a major stressor. To do so, this pilot study focused on the understudied population of military combat medics, who are exposed to both stressors associated with direct combat and with providing intense battlefield trauma care.. To read the full article, log in using your NHS OpenAthens details.