Persistence of SARS-CoV-2 on the surface of salmon
Author:
  • LYU Qi

    LYU Qi

    Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS)& Comparative Medicine Center, Peking Union Medical Collage (PUMC);NHC Key Laboratory of Human Disease Comparative Medicine; Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious; Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases; Key Laboratory of Human Diseases Animal Model, State Administration of Traditional Chinese Medicine, 100021 Beijing, China
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  • LIU Mingya

    LIU Mingya

    Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS)& Comparative Medicine Center, Peking Union Medical Collage (PUMC);NHC Key Laboratory of Human Disease Comparative Medicine; Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious; Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases; Key Laboratory of Human Diseases Animal Model, State Administration of Traditional Chinese Medicine, 100021 Beijing, China
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  • QI Feifei

    QI Feifei

    Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS)& Comparative Medicine Center, Peking Union Medical Collage (PUMC);NHC Key Laboratory of Human Disease Comparative Medicine; Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious; Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases; Key Laboratory of Human Diseases Animal Model, State Administration of Traditional Chinese Medicine, 100021 Beijing, China
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  • GONG Shuran

    GONG Shuran

    Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS)& Comparative Medicine Center, Peking Union Medical Collage (PUMC);NHC Key Laboratory of Human Disease Comparative Medicine; Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious; Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases; Key Laboratory of Human Diseases Animal Model, State Administration of Traditional Chinese Medicine, 100021 Beijing, China
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  • ZHOU Shasha

    ZHOU Shasha

    Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS)& Comparative Medicine Center, Peking Union Medical Collage (PUMC);NHC Key Laboratory of Human Disease Comparative Medicine; Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious; Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases; Key Laboratory of Human Diseases Animal Model, State Administration of Traditional Chinese Medicine, 100021 Beijing, China
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  • BAO Linlin

    BAO Linlin

    Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS)& Comparative Medicine Center, Peking Union Medical Collage (PUMC);NHC Key Laboratory of Human Disease Comparative Medicine; Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious; Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases; Key Laboratory of Human Diseases Animal Model, State Administration of Traditional Chinese Medicine, 100021 Beijing, China
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Affiliation:

Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS)& Comparative Medicine Center, Peking Union Medical Collage (PUMC);NHC Key Laboratory of Human Disease Comparative Medicine; Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious; Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases; Key Laboratory of Human Diseases Animal Model, State Administration of Traditional Chinese Medicine, 100021 Beijing, China

Clc Number:

R-33

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    Abstract:

    To investigate the persistence of SARS-CoV-2 on the surface of salmonto provide data for the control of COVID-19. Methods A 100 μL droplet of virus culture was pipetted ontothe surface of salmon and then incubated at 4℃ or 22℃ for up to 5 days. A 100 μL droplet of virus culture was also pipetted into 4% NaCl imitation seawater and then incubated at 4℃ and 22℃ for up to 9 days.The infectivity of virus collectedfrom salmon surfacesand from the 4% NaCl brine was titrated using the Vero E6 cell line. Results The virus on salmon surfacesretained viability for 4days at 4℃ , and for 1 day at 22℃ ; 50% of infectivity was lost after 1 day at both temperatures.Virus in 4% NaCl imitation seawaterretained viability for 7 days at 4℃ and for 2 days at 22℃ ; 50% of infectivity was lost after 1 day at both temperatures. Conclusions SARS-CoV-2 remained viable on salmon surfaces for 1-4 days at 4℃ and 22℃ . SARS-CoV-2 remained viable in 4% NaCl imitation sea water for 2-7 day sat 4℃ and 22℃.

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History
  • Received:September 08,2020
  • Online: April 07,2021
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