News (1)
Why are all the 164 cases of Kashgar in Xinjiang asymptomatic? Investigations underway
Reporter : Li Yanan / Editor : Li Yusu / Publisher : China News Network / http://www.chinanews.com/sh/2020/10-26/9323242.shtml / Translation, editing : Gan Yung Chyan, KUCINTA SETIA
1 case, 137 cases, and 26 cases. A total of 164 people have been infected with the SARS-CoV-2 (new coronavirus, covi, CCP virus) in Kashgar, Xinjiang for 3 consecutive days, and all of them are asymptomatic.
After a case of asymptomatic infection of novel coronavirus pneumonia (covid) was reported in Shufu County, Kashgar Prefecture, Xinjiang on 24 October, local close contacts and close contacts of close contacts were tested for nucleic acid, and 137 asymptomatic infections were found the next day. Through the free nucleic acid test for all employees immediately carried out in Kashgar, the official report indicated that as of 14 pm on 26 October, there were no confirmed cases of covid in Xinjiang and 26 new cases of asymptomatic infection, all in Shufu County.
Wang Guangfa, director of the Department of Respiratory and Critical Care Medicine at Peking University First Hospital, pointed out when analyzing the epidemic that people infected with the new crown virus can usually be tested positive for nucleic acid 2 days before symptoms appear. The situation of this case in Kashgar, Xinjiang may be because most of these patients are in the early stage of the disease, and secondly, because the local response is relatively rapid, they may have been tracked before the symptoms appear.
"If the infected persons in Kashgar are detected earlier, they may be asymptomatic, but it does not mean that these infected persons will not develop symptoms and turn into confirmed cases in the future," said Chen Xi, an associate professor at Yale University School of Public Health. On the other hand, consider when the infection occurs in the factory and the workers are mainly young people, the probability of asymptomatic infection will be higher. This situation has appeared in clinics in many parts of the world.
People who are asymptomatically infected with covi, often referred to as "silent communicators", are now a topic of international concern.
Anthony Fauci, Director of the National Institute of Allergy and Infectious Diseases, recently pointed out that the estimated proportion of asymptomatic infections in the United States is 40% to 45%.
A large-scale population study in 19 countries and regions previously published by the international medical journal "Public Science Library Medicine" showed that asymptomatic infections account for about 20% of the population infected with the CCP virus.
Asymptomatic infections have caused statistical problems for all countries due to their own "occult". Many countries have adjusted the detection and statistics methods of asymptomatic infections several times.
The first case of asymptomatic infection in Kashgar, Xinjiang, was discovered by local authorities during regular nucleic acid tests conducted by "should check and do all" personnel in Shufu County, Kashgar. Further CT examination of this case by the hospital showed no abnormalities, and IgM and IgG antibody tests were negative.
At present, although there have been no reports of asymptomatic infections being converted to confirmed cases in this epidemic, the source of the epidemic is still unclear and the transmission chain is still complicated.
In order to clarify the path of infection, Chen Xi said that antibody testing should be increased in a targeted manner. "For small areas where you don't know when community transmission will begin and you suspect a certain amount of infection, such as Kashgar, it is appropriate to add a representative antibody test."
"According to past experience, if there is no source of asymptomatic cases, you must be very careful." Wang Guangfa said that the range of human activities is limited, and a covid patient can infect an average of 3 people. According to this data, the number of asymptomatic infections this time may mean that there have been second, third or even more infectious cases, and the emergence of "super spreaders" cannot be ruled out.
"We can only call the first case discovered this time the indicated case, and it may not be the first infected case." According to Zeng Guang, the former chief epidemiologist of the Chinese Center for Disease Control and Prevention, the case in Xinjiang this time is the possibility of occurrence in Shufu County is unlikely, and the infection may have been caused by some contact with the outside world.
Zeng Guang emphasized that at the moment, the top priority is to put all the asymptomatic infections that have been found on the same level for analysis, concentrate on doing an epidemiological investigation of everyone, and clarify the relationship between the cases.
Kashgar is located on the western edge of China and is also an important gateway for China to open up to the west. As of 4 pm on 26 October, a total of 4,471,700 people in Kashgar had been sampled, and the results had been 2,133,600. The official stated that it would ensure that all employees in Kashgar would complete nucleic acid testing on 27 October.
"This epidemic is different from the past, because it occurred in rural areas and a minority nationality, but the detection of the epidemic is still relatively early." In Zeng Guang's view, the scale of the epidemic in Kashgar cannot be determined for the time being. The most important task is to expand nucleic acid testing and concentrate efforts on epidemiological investigations.
In addition to the possibility that the infected are still in the early stages of infection, will the discovery of a large number of asymptomatic infections mean that the pathogenicity of the virus is weakening?
"Some of the CCP virus samples found in Asia have been different from the strains found in North America and South America. From a virological point of view, the virus has always been more and more adapted to the human body." Chen Xi believes that the novel coronavirus is dependent on the human body for a large amount of transmission, and its toxicity. The possibility of the covi gradual decline and more and more difficult to be discovered exists.
In this regard, Zeng Guang analyzed that to determine whether the virus has changed, it is also necessary to conduct genetic analysis of the virus and respect the results of actual investigation and analysis. "The virulence and transmission of the virus have shown a diversified trend." Zeng Guang said that at present, people have only been dealing with the CCP virus for ten months. The current view of the virus may be different from the early view of the virus, but it still needs further research.
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News (2)
It is suspected the factory of the 17-year-old girl is a concentration camp
Host : Li Dayu / https://www.ntdtv.com/gb/2020/10/27/a102972670.html / Direct translation
At present, like some other parts of the world, mainland China is facing the impact of the severity of the epidemic in autumn and winter. In Kashgar, Xinjiang, one confirmed case was notified on October 24, and on October 25, only one night later, another 137 new cases were notified. Kashgar was locked down last week but the authorities concealed the news and even refuted the rumours for a while. However, the current information confirms that there is no doubt that the epidemic in Kashgar is quite serious.
Moreover, the surge of so much overnight is all from a local "clothing factory." The first confirmed case notified locally was a 17-year-old girl. 831 people in her garment factory were negative, and her parents were also negative, but the newly added 137 confirmed cases were all in the factory where her parents were located. People suspected that the factory of the first confirmed case was fine, and the parents were fine. On the contrary, there were so many diagnoses in the factory of the parents? Is there any concealment in the factory where the girl is located?
People suspected that the factory she was in was actually a concentration camp in Xinjiang through the description of the girl’s factory. The girl’s factory is close to home, but she can only go home regularly, and there are many people in the factory, but at present, this is just a guess.
In other words, the current situation of Kashgar's epidemic has brought out people's concerns about official concealment and the health conditions of Xinjiang concentration camps.
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News (3) Updated 28/10/2020
Kashgar: Excluding the correlation between the outbreak in Shufu County and the virus in Urumqi in July
Reporters : Sun Tingwen and Zhao Yamin / Editor : Li Jun / Publisher : China News Network / http://www.chinanews.com/gn/2020/10-27/9323943.shtml / Translation, editing : Gan Yung Chyan, KUCINTA SETIA
In the afternoon of 27 October, the Press Office of the People’s Government of Xinjiang Uygur Autonomous Region held the third press conference on the prevention and control of the Kashgar epidemic and notified the media on the. traceability of the epidemic situation in Shufu county, Kashgar.
Li Linyu, Secretary of the Party Leadership Group of the Kashgar District Health Commission, reported that at present, among the asymptomatic infections that have been detected, no clear history of contact with related suspected cases, confirmed cases, fever patients, or contact with cold chain items or wild animals has been found. Contact history. The traceability of the epidemic is in progress. After a genome-wide analysis of the viruses found in samples of asymptomatic infections, the correlation between the outbreak in Shufu County and the Urumqi outbreak in July was ruled out.
Li Linyu said that after the outbreak in Shufu County, under the guidance of the national and autonomous region expert groups, the Kashgar area quickly established a flow adjustment working group to find out the trajectories of asymptomatic infections and close contacts through comprehensive investigations, investigations and analysis, evaluate transmission risk factors, find possible sources of infection for accurate prevention and control.
According to reports, at night of 24 October, the Xinjiang CDC sent a 19-member circulation team to Shufu County to work with local circulation forces in Kashgar. At night of 25 October, the CDC of the National Health Commission and a working group composed of epidemiological investigation experts from the China CDC arrived in Kashgar. On 26 October, four professional disease control teams from the country, Xinjiang autonomous region, region, and county formed a joint circulation work group to carry out circulation work in an efficient and orderly manner.
Li Linyu said that most of the infected persons reported in the Shufu County epidemic had no clinical symptoms. This may be due to the early stage of infection. As the disease progresses further, some of the asymptomatic infections may develop symptoms and become confirmed cases. All asymptomatic infections are under active medical observation.
At present, all counties and cities in Kashgar have carried out comprehensive and meticulous transfer of personnel who have lived in high-risk areas since 17 October and close personnel. Up to now, the nucleic acid detection and isolation work of the close contacts transferred by convection has been completed.
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