Author: Wang, Xin-Wei; Li, Jin-Song; Jin, Min; Zhen, Bei; Kong, Qing-Xin; Song, Nong; Xiao, Wen-Jun; Yin, Jing; Wei, Wei; Wang, Gui-Jie; Si, Bing-yin; Guo, Bao-Zhong; Liu, Chao; Ou, Guo-Rong; Wang, Min-Nian; Fang, Tong-Yu; Chao, Fu-Huan; Li, Jun-Wen
Title: Study on the resistance of severe acute respiratory syndrome-associated coronavirus Cord-id: gwaqh4dd Document date: 2005_3_20
ID: gwaqh4dd
Snippet: 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, t
Document: 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 f(2) 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 f(2) phage.
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