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. 2020 Jun 24;743:140444. doi: 10.1016/j.scitotenv.2020.140444

Table 2.

SARS-CoV-2 loads and viral RNA Ct values in faecal samples detected positive by real-time RT-PCR.

Reference No. patients SARS-CoV-2 load (copies/mL) Other results
(Wolfel et al., 2020) 9 >107 (peak)
(range 103–107)
  • -

    viral load highly variable, depending on the day of sampling post onset.

  • -

    peak during the first week from onset

(Zhang et al., n.d.) 23 5623 (mean)
105.8 (peak)
  • -

    faecal samples detected by rRT-PCR targeting ORF1ab, N and S genes

  • -

    Ct values of ORF1ab gene from ⁓25 to 43

  • -

    Negative samples for Ct value of 43 (limit of detection)

  • -

    Ct values of 37.6, 32.64, 29.22, and 25.77 corresponding to 1 × 103, 1 × 104, 1 × 105, and 1 × 106 copies/mL, respectively.

(Cheung et al., 2020) 59 104.7 (median)
(range 103.4–107.6)
  • -

    105.1 copies/mL with diarrhoea

  • -

    103.9 copies/mL without diarrhoea

(W. Wang et al. 2020) 153 <2.6·104 copies/mL
  • -

    mean Ct = 31.4 ± 5.1

(Y. Wu et al., 2020) 41
  • -

    faecal viral RNA Ct values in 41 patients with positive faeces

  • -

    Ct values of the targeted genes RdRp, N, E were 30.33 ± 8.12, 26.85 ± 11.42 and 28.42 ± 6.79, respectively.

(Xu et al., 2020) 10 2·103–2·107 (estimated by us)
  • -

    Ct values of Orf1ab and N genes on real-time RT–PCR in rectal swabs from ⁓23 to 37

  • -

    Ct profiles during 1–27 d since admission are available

  • -

    Ct values of 32.04, 28.81, 25.14 and 21.54 corresponding to 5.27 × 104, 5.27 × 105, 5.27 × 106 and 5.27 × 107 copies/mL