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Enrollment nucleocapsid serostatus, viral load, infection duration. Comparisons between nucleocapsid (N) seronegative (Ab−) (N = 121) and seropositive (Ab+) (N = 23) participants are shown for a) breakthrough infection duration (PCR+ days), b) N ct value, and c) ORF1AB ct value. The red bar in all graphs is the median and statistical comparisons between N Ab− and N Ab+ participants were done using a Mann–Whitney test and the P values are indicated for each comparison.
