Limitations
This study presents several limitations. Firstly, the sample size is small. Because the crisis outbreak was still ongoing during the research period, we should allow medical staff to spend more time on patients or rest. In addition, the study was carried out during 10 days in the late stage of fighting epidemic in Wuhan, China, while the early, middle stage and longitudinal follow-up were not considered. Thus we couldn’t investigate the dynamic psychological change. Further studies with larger sample size and observation of multiple time point are warranted.