Longitudinal trends in burnout among healthcare professionals during the COVID-19 pandemic: a 4-year prospective cohort study in a tertiary medical centre in Taiwan.

This study highlights the critical impact of long working hours on burnout among healthcare professionals during the COVID-19 pandemic. Nurses emerged as a vulnerable group, sensitive to pandemic-induced changes, while attending physicians exhibited more resilience. COVID-related units face greater stress and are less likely to benefit from reductions in patient numbers and working hours during the pandemic. Our findings underscore the urgent need for tailored interventions, such as regulated work hours, flexible scheduling and enhanced organisational and peer support, to protect healthcare workers' well-being. These strategies can strengthen workforce resilience and sustainability in future public health crises.