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Imported cases from outside Omikejon
Caused widespread concern
Tianjin reported on the evening of the 13th
The Omiljun variant of the new coronavirus was detected from the people entering the country
This is the first time that the new coronavirus Olmikharong variant has been detected Chinese mainland
Today(14th)
Another positive case of Omicron imported from abroad was found in Guangzhou
Imported positive cases from outside Yuexiu District, Guangzhou
Detected as the Omikejung variant
On the afternoon of the 14th, Guangzhou, Guangdong Province, held a press conference on epidemic prevention and control. At the press conference, Chen Bin, deputy director of the Guangzhou Municipal Health Commission and spokesman of the Guangzhou Municipal Health Commission, informed the situation of a person entering Guangzhou who routinely tested positive for the new coronavirus during the home isolation period after returning to the spike after the end of the centralized isolation period in guangzhou.
The case, a 67-year-old male, lives at No. 65, Tiansheng Village, Huale Street, Yuexiu District.
He entered from abroad on November 27 and tested negative for several times during the centralized quarantine.
On December 11, after the release of isolation, he returned to Guangzhou by plane (CA1837) and was transferred to his home in Yuexiu District for home isolation.
On December 12, the Huale Street Community Health Service Center routinely collected nucleic acid samples for him.
In the early morning of December 13, the results of the initial screening were positive, and the resampling and re-examination results of the municipal and district CENTERS were all positive. The case was transferred to the Eighth Affiliated Hospital of Guangzhou Medical University for isolation and treatment, and after further examination and expert consultation, it was confirmed to be an ordinary type of new crown pneumonia and is currently in stable condition.
The Guangzhou Municipal Center for Disease Control and Prevention conducted whole genome sequencing and sequence analysis of the new coronavirus on the nasal swab of the case, and after review by the provincial and municipal CENTERS for Disease Control and Prevention, reported to the National Center for Disease Control and Prevention for confirmation, the new coronavirus was detected as a Variant of Aomi Kerong.
As of 12:00 on December 14, 184 close contacts have been identified, 865 people have been closely contacted, and the above personnel have implemented control measures, and the nucleic acid test results are all negative. All the identified close connections are centralized and isolated, and the sub-close connections strictly implement "home isolation, stay at home".
As of 12:00 on December 14, a total of 10,544 people have been screened in key places, and the results have been negative. A total of 132 environmental samples were collected, 128 environmental samples tested negative, and 4 positive were found in the residence of the cases.
According to the needs of epidemic prevention and control, Guangzhou Has delineated 1 sealing and control area, one control area and one prevention area. From 6 o'clock on the 14th, all passengers departing from Baiyun Airport must check the itinerary code on the basis of measuring temperature and checking the health code.
Tianjin Municipal Health Commission revealed
More details on the first detected case
On December 13, the Tianjin Municipal Epidemic Prevention and Control Command announced that the Tianjin Municipal Center for Disease Control and Prevention carried out whole genome sequencing and sequence analysis of the new coronavirus imported from outside Tianjin on December 9, as well as the review of the Chinese Center for Disease Control and Prevention, all of which confirmed the detection of the New Coronavirus Semicron variant (B.1.1.529 evolutionary branch).
According to Gu Qing, director of the office of the Tianjin Municipal Covid-19 Epidemic Prevention and Control Headquarters and director of the Tianjin Municipal Health Commission, the Aomi Kerong mutation found in Tianjin this time is the first time that Chinese mainland detected. It is an entry personnel from Europe, who had a normal body temperature when entering Tianjin and declared no abnormalities. After the customs quarantine inspection and sampling, the whole process of closed-loop management is transferred to the centralized isolation medical observation point in Xiqing District. On December 9, the nucleic acid test result of the new crown virus was positive, that is, he was transferred to Haihe Hospital by 120 ambulance. The case is an asymptomatic infected person who currently has no symptoms such as cough and fever, and is now being isolated in a designated hospital for new crown pneumonia in Tianjin.
In order to prevent the spread of the Aomi Kerong variant virus in the hospital, Tianjin has also specially designated a special ward for people infected with the Aomi Kerong variant virus, and a special medical team will treat them.
As a person entering the country, the case may have a positive infected person on the flight. During the 14-day quarantine at the isolation point, the staff will pay more strict attention to the health status of each passenger and pay more attention to the nucleic acid test results of each passenger. At the same time, the monitoring and supervision of isolation points and the elimination of killings will be strengthened, and the environment and personnel contacted by cases in the process of health surveillance will be supervised in real time. So far, no other infected persons have been found in the nucleic acid testing of the flight's inbound personnel.
Longer incubation period of Omi kerong?
Will it affect existing test reagents?
Combing the official information found that the two cases of inbound personnel who detected the Aumi Kerong variant, the asymptomatic infected person in Tianjin was found during the centralized isolation period, while the case in Guangzhou was confirmed to be infected during the 14-day centralized quarantine in Guangzhou during the flight to Guangzhou home isolation.
That is to say, the case in Guangzhou was confirmed to be infected with Omikeron 16 days after entering the country, compared with the Delta variant, the incubation period of Omikeron has become longer? Does the current 14-day centralized quarantine plus 7-day home isolation need to be adjusted?
"According to existing studies, the incubation period of delta variants is usually three to four days, that is, most infected people will become ill or test positive within five days." One epidemiologist said a small percentage would develop the disease or test positive after five days, the vast majority would become ill or test positive within 14 days, and very few would be more than 14 days.
Does the confirmed case in Guangzhou indicate that Aomi Kerong has a longer incubation period than Delta? "There is no evidence of a change in the incubation period of this variant." Jin Dongyan, a virologist at the University of Hong Kong, said there are many possible reasons for this.
The above-mentioned epidemiological experts said that the quarantine period of inbound personnel cannot be extended arbitrarily, which involves the control of prevention and control costs and the protection of the personal rights of quarantined persons.
The first confirmed case of Aomi Kerong imported from abroad announced by Guangzhou has been negative for multiple nucleic acid tests during the centralized isolation period. For Omikron, how sensitive and accurate is the nucleic acid testing in China?
On December 11, Wu Liangyou, deputy director of the Disease Control Bureau of the National Health Commission, said at a press conference of the joint prevention and control mechanism of the State Council that the Aomi Kerong variant does not affect the sensitivity and specificity of existing nucleic acid detection reagents in China.
"After the person was released from isolation, the nucleic acid detection reagent we used was very sensitive to check him out." Zhang Zhoubin, deputy director of the Guangzhou Municipal Center for Disease Control and Prevention, said at the press conference on epidemic prevention and control in Guangzhou that Aomi Kerong is still a variant strain of the new crown virus, which is still transmitted through the respiratory tract, and the Aomi Kerong variant does not affect the sensitivity and specificity of existing nucleic acid detection reagents in China.
Source: Oriental Network Integrated CCTV News, People's Daily, Tianjin Release, Surging News, etc
Editors: Wei Yifei, Little Master
Reviewer: Bian Yinghao