Figure 3 | Scientific Reports

Figure 3

From: Results of an early second PCR test performed on SARS-CoV-2 positive patients may support risk assessment for severe COVID-19

Figure 3

Negative rate of NP SARS-CoV-2 PCR tests following a positive COVID-19 diagnosis within a “positive window”. Prevalence of negative test results in the population of adult individuals with a positive COVID-19 window, defined between the first and last positive test results taken. Line represents the negative tests rate from day 1 to day 21 following a positive COVID-19 diagnosis. Each time point is calculated by taking a 3 days window (± 1 days from day measured) except in the first day which was taken as is. Shaded area represents 95% binomial proportion confidence intervals.

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