Coronavirus can maintain vitality in three common excreta (sputum, feces and urine) and blood for a long time. At room temperature, coronavirus can survive for about 5 days in feces, 10 days in urine and 15 days in blood.
Many researches and authoritative experts: On June 365438+1October 3 1, the top international medical magazine NEJM reported that the first case of COVID-19 pneumonia in the United States was treated and improved, and the paper claimed that novel coronavirus was detected in the patient's feces.
On June 365438+1October 3 1, Academician Zhong Nanshan warned that although novel coronavirus is mainly transmitted by droplets, we should pay attention to the possibility of fecal infection.
Coincidentally, on February 1 day, Shenzhen People's Hospital issued a notice saying that novel coronavirus nucleic acid was found positive in the feces of some patients diagnosed in COVID-19 by the Institute of Hepatology of the hospital, so there was probably a live virus in the feces.
These two cases and Academician Zhong Nanshan's words show that novel coronavirus is likely to be infected through the digestive system (fecal transmission) in addition to respiratory infection and transmission (droplets and contact).
How long can COVID-19 live on the surface of an object?
A new study points out that if it is similar to SARS and MERS viruses, COVID-19 can survive on metal, glass or plastic surfaces for up to 9 days. In contrast, influenza viruses can only survive on the surface of objects for 48 hours.
In this new study, in order to further understand the survival time of COVID-19 in vitro, the researchers analyzed more than a dozen previously published papers about other human coronaviruses except COVID-19. It was found that this coronavirus can survive on the surface of objects for more than a week at the longest, but once the temperature exceeds 30 degrees Celsius, its activity will disappear. The researchers also found that household disinfectants can effectively kill these coronaviruses.
Dr. Buyao reminded everyone that the public toilets outside are a great source of infection, so we should reduce the number of trips to public toilets and try not to go.
Whether at home or in public toilets, they should be disinfected regularly.
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