Skip to main content

Table 1 Results of real-time reverse-transcriptase–polymerase-chain-reaction testing

From: Recurrent SARS-CoV-2 RNA positivity and prolonged viral shedding in a patient with COVID-19: a case report

Date/Specimen

Nasopharyngeal swab

Oropharyngeal swab

Anal

swab

Blood

sample

Jan 28 (illness day 7)

Positive

(Ct, 22–23)

NT

NT

NT

Feb 07 (illness day 17)

Positive

(N/A)

NT

NT

NT

Feb 10 (illness day 20)

Positive

(N/A)

NT

NT

NT

Feb 12 (illness day 22)

NT

Negative

Negative

NT

Feb 14 (illness day 24)

NT

Negative

Negative

NT

Feb 29 (illness day 39)

NT

Negative

Positive

(Ct, 36–37)

NT

Mar 03 (illness day 42)

NT

Negative

Negative

NT

Mar 04 (illness day 43)

NT

Negative

Negative

NT

Mar 06 (illness day 45)

NT

Negative

Negative

NT

Mar 14 (illness day 53)

NT

Negative

Negative

NT

Mar 21 (illness day 60)

NT

Positive

(Ct, 36–36)

Negative

NT

Mar 25 (illness day 64)

NT

Negative

NT

NT

Mar 28 (illness day 67)

NT

NT

NT

Negative

Apr 02 (illness day 72)

NT

Negative

Negative

NT

  1. A cycle threshold (Ct) value of 40 is ued as the cut-off point. Lower Ct values indicate higher viral loads
  2. NT denotes “not tested”. N/A denotes “not available”
  3. Positive nucleic acid test results are shown in bold