Adolescents are likely to suffer from negative emotions such as

depression and anxiety due to the rapid development of biological, cognitive

and social changes. Previous studies have indicated possible risk (rumination) and protective (good social support and high sleep quality) factors for depression and anxiety. The present study is the first to investigate the association between social support and negative emotions during the outbreak of the Omicron variant, to determine the role of rumination and sleep quality. Social support, rumination, and sleep quality were significantly negatively correlated with negative emotional states (Ps<0.05). Further, rumination and sleep quality were found to partially mediate the relationship between social support and negative emotional states. Clinical implications for intervention are discussed.