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Table 1 SARS-CoV-2 gene detection in PPE samples infected with a heat-inactivated SARS-CoV-2 strain 2019-nCoV/USA-WA1/2020 (Str-Inf)

From: Persistence of SARS-CoV-2 infection on personal protective equipment (PPE)

PPE Genes 5 days (Ct)a 10 days (Ct) 15 days (Ct) 20 days (Ct)
Gowns N 29.4 31.5 32.8 33.8
S 29.3
Orf1ab 29.2
Face masks N 30.7 32.8 33.7
S 31.2 33.8 33.2
Orf1ab 31.4 32.8 36.3
  1. aCt: Cycle threshold in relation to the number of cycles required for the fluorescent marked amplification to cross the threshold in the RT-qPCR reaction. Lower Ct values indicates higher viral load. Ct-values ≤ 37.0 were considered as positive