Figure 1.
Day-wise distribution of viral ribonucleic acid (RNA) shedding in nasopharyngeal (NP) swabs in asymptomatic and paucisymptomatic coronavirus disease 2019 cases. Viral RNA shedding progressively diminished from Day 1 through Day 9, as evidenced by an increase in median cycle threshold (Ct) values in reverse-transcription polymerase chain reaction. The NP swabs of none of the participants tested positive after Day 9 of recruitment. Comparison between the median Ct values over the days was statistically significant (χ 2 = 133.42, P < .001).