Background: Mental health of medical workers treating patients with COVID-19 is an issue of increasing concern worldwide. The available data on stress and anxiety symptoms among healthcare workers during the COVID-19 are relatively limited and have not been evaluated in Russia yet. Subjects and methods: The cross-sectional anonymous survey included 1,090 healthcare workers. Stress and anxiety symptoms were assessed using Stress and Anxiety to Viral Epidemics - 9 (SAVE-9) and Generalized Anxiety Disorder - 7 (GAD-7) scales. Logistic regression, Kaiser-Meyer-Olkin two component factor model, Cronbach's alpha and ROC-analysis were performed to determine the influence of different variables, internal structure and consistency, sensitivity and specificity of SAVE-9 compared with GAD-7. Results: The median scores on the GAD-7 and SAVE-9 were 5 and 14, respectively. 535 (49.1%) respondents had moderate and 239 (21.9%) had severe anxiety according to SAVE-9. 134 participants (12.3%) had severe anxiety, 144 (13.2%) had moderate according to GAD-7. The component model revealed two-factor structure of SAVE-9: “anxiety and somatic concern” and “social stress”. Female gender (OR - 0.98, p=0.04) and younger age (OR - 0.65, p=0.04) were associated with higher level of anxiety according to regression model. The total score of SAVE-9 with a high degree of confidence predicted the GAD-7 value in comparative ROC analysis. Conclusions: Healthcare workers in Russia reported high rates of stress and anxiety. The Russian version of the SAVE-9 displayed a good ratio of sensitivity to specificity compared with GAD-7 and can be recommended as a screening instrument for detection of stress and anxiety in healthcare workers. © Medicinska naklada - Zagreb, Croatia