https://www.sciencedirect.com/science/article/pii/S0166093405000649?via%3Dihub

Study on the resistance of severe acute respiratory syndrome-associated coronavirus

Author links open overlay panelXin-WeiWang^aJin-SongLi^bMinJin^aBeiZhen^bQing-XinKong^aNongSong^aWen-JunXiao^bJingYin^aWeiWei^bGui-JieWang^bBing-yinSi^bBao-ZhongGuo^bChaoLiu^cGuo-RongOu^aMin-NianWang^bTong-YuFang^dFu-HuanChao^aJun-WenLi^a

https://doi.org/10.1016/j.jviromet.2005.02.005Get rights and content

Abstract

In this study, the persistence of severe acute respiratory syndrome-associated coronavirus (SARS-CoV) was observed in feces, urine and water. In addition, the inactivation of SARS-CoV in wastewater with sodium hypochlorite and chlorine dioxide was also studied. In vitro experiments demonstrated that the virus could only persist for 2 days in hospital wastewater, domestic sewage and dechlorinated tap water, while 3 days in feces, 14 days in PBS and 17 days in urine at 20 °C. However, at 4 °C, the SARS-CoV could persist for 14 days in wastewater and at least 17 days in feces or urine. SARS-CoV is more susceptible to disinfectants than Escherichia coli and f₂ phage. Free chlorine was found to inactivate SARS-CoV better than chlorine dioxide. Free residue chlorine over 0.5 mg/L for chlorine or 2.19 mg/L for chlorine dioxide in wastewater ensures complete inactivation of SARS-CoV while it does not inactivate completely E. coli and f₂ phage.


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