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. 2021 Jan 11:1–3. doi: 10.1017/ice.2020.1420

Fig. 1.

Fig. 1.

Distribution of reverse-transcriptase polymerase chain reaction (RT-PCR) cycle threshold (Ct) values of 84 healthcare workers with confirmed COVID-19 and persistently positive respiratory sample for SARS-CoV-2 by RT-PCR, 14 days after the onset of symptoms.