WEF published the article "to "Coronavirus and Water Systems" on May 12, 2020. Since then notable new and updated research has emerged that bears inclusion. These updates are listed below.
Added June 5, 2020
Previously, two studies have reported the persistence of infectious virus in feces without quantification.
More recently, a new study, "Infectious SARS-CoV-2 in Feces of Patient with Severe COVID-19," has quantified infective virus in feces reporting that isolation is more likely from critically ill patients.
This new research does not change the conclusions of the main article.