The Journal of infectious diseases
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During the coronavirus disease 2019 pandemic, a minority of index cases are associated with a majority of secondary cases suggesting that superspreaders could drive the pandemic. We identified a phenotype in individuals with extremely high viral load who could act as superspreaders. ⋯ We detected a small group of individuals with extremely high SARS-CoV-2 viral loads and mild illness. We believe that these individuals' characteristics could be consistent with the superspreader phenomenon and that greater awareness of the social dynamics of these individuals is needed to understand the spread of SARS-CoV-2.