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. 2020 May 23;736:139652. doi: 10.1016/j.scitotenv.2020.139652

Table 2.

Results of SARS-CoV-2 detection in the study period.

City and WWTP Date of sampling
03 Feb 19 Feb 23 Feb 24 Feb 26 Feb 28 Feb 31 Mar 02 Apr
Milan – plant A × ○a × ×
Milan – plant B × × × ○●
Rome – plant C1 ○a ○
Rome – plant C2 ○ ○●

× SARS-CoV-2 not detected; ○ SARS-CoV-2 detected (ORF1ab); ● SARS-CoV-2 detected (spike).

a

Weak positive.