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[Introduction]: recently, local confirmed cases have been reported in Tianjin, Shanghai, Anhui and other places one after another. Shanghai health committee previously stipulated that people from middle-risk areas came to Sui, according to the specific situation, home isolation will be implemented for 14 days.

From 24: 00 on November 18, 2020, the haixuan community of Tianjin Dongjiang Port Area will be designated as a medium-risk area and corresponding control measures will be implemented. Since November 9, 2020, according to the relevant provisions of the State Council’s joint prevention and control mechanism to deal with the epidemic of covid-19 and the epidemic situation of covid-19 in Tianjin, Hangu Street, Binhai New Area, Tianjin, zone A and Zone B of the cold chain logistics zone of the Central Fishing Port are designated as medium risk areas.

Do I need to isolate the risks in Hangu, Tianjin to go to Shanghai?

According to the relevant regulations issued by Shanghai Health and Health Commission on the return of people from medium-risk areas, to implement community health management, namely “three ones”, to issue a health notice and carry out a health consultation for those who have a history of living in medium-risk areas in the past 14 days, check a health pass code, and conduct nucleic acid test on the day of arrival in Guangdong, and implement home isolation for 14 days depending on the specific situation.

The three evidences of this round of epidemic in Tianjin point to “from things to people”

Liang chunzao, deputy commander-in-chief of Tianjin Binhai New Area prevention and control headquarters and deputy district chief, said that after the 138 cases appeared, after the flow adjustment and tracing, the preliminary conclusion was that the spread of the epidemic was from things to people. There are three points of evidence:

① The confirmed case has not been to the place where the epidemic occurred before the diagnosis, has not been exposed to other cases of illness, and has not been exposed to patients with fever, that is to say, his only possible way of infection is from thing to person “.

② the nucleic acid tests of the contact person and the close contact person of this case are all negative.

③ the whole gene sequencing results of the virus show that it belongs to the branch of North America, but this case has not been abroad and has not contacted people outside China.

At the same time, the asymptomatic infected person confirmed on November 9 did not have direct contact with the 138 confirmed cases, so it can be inferred that the infection of the asymptomatic infected person is also a process from thing to person.