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Correlation between SARS-CoV-2 viral load and COVID-19 symptoms. (a) SARS-CoV-2 load according to the number of clinical symptoms; (b) Symptoms according to the SARS-CoV-2 load for each subject; (c) SARS-CoV-2 load according to the type of clinical symptoms. NP, nasopharyngeal; SCPS, self-collected pure saliva.
