This weekend, the epidemic situation in China is a little severe. We must protect ourselves when we go out.
covid-19 can be measured at home for 15 minutes
On March 12, according to the wechat account of Lbx Pharmacy Chain Joint Stock Company(603883) pharmacy group, Lbx Pharmacy Chain Joint Stock Company(603883) pharmacy and Guangzhou Guangzhou Wondfo Biotech Co.Ltd(300482) pharmacy reached a cooperation. The first batch of covid-19 antigen rapid test products have been on the way of logistics and transportation and are expected to be sold in stores in the near future. The first batch of products will be landed in the stores of Lbx Pharmacy Chain Joint Stock Company(603883) pharmacy in 12 provinces and cities including Shanghai, Hunan and Jiangsu.
According to the poster information, Guangzhou Wondfo Biotech Co.Ltd(300482) ‘s covid-19 antigen rapid test product can get the test result in 15 minutes.
The official account of Lbx Pharmacy Chain Joint Stock Company(603883) pharmacy group mentioned:
1. [who can test?] ① those who go to primary medical and health institutions with respiratory tract, fever and other symptoms within 5 days; ② Isolation observation personnel, including personnel in home isolation observation, close connection and secondary close connection, entry isolation observation, sealing and control area; ③ Community residents with antigen self-test needs.
2. [what are the precautions?] antigen test has three steps. (see the figure below for details)
3. [what is the practical use of the test results?] as a supplementary means, it can be used for screening of specific populations, which is conducive to improving the ability of “early detection”.
4. [can the test result replace nucleic acid?] No.
5. How to deal with the used reagent
Equally divided into groups.
Isolate the observer: whether the test result is negative or positive, all used sampling swabs, sampling tubes, test cards, etc. shall be put into sealed bags and handled by the management personnel according to the medical waste or procedures.
Community residents: if the test result is negative, all nasal swabs, sampling tubes, test cards, etc. after use shall be put into sealed bags and treated as general garbage; If the test result is positive, it shall be handed over to the medical institution for treatment as medical waste when the personnel are transferred.
march 12, the State Food and Drug Administration issued a notice approving the change of covid-19 antigen product self-test application of Nanjing Nanjing Vazyme Biotech Co.Ltd(688105) , Beijing jinwofu, Shenzhen Huada Yinyuan, Guangzhou Guangzhou Wondfo Biotech Co.Ltd(300482) , Beijing huaketai biology. Since then, five covid-19 antigen self-test products have been officially launched
Among them, Guangzhou Wondfo Biotech Co.Ltd(300482) , Shenzhen Huada Yinyuan ( Bgi Genomics Co.Ltd(300676) ), Nanjing Vazyme Biotech Co.Ltd(688105) are A-share companies, while Beijing jinwofu and Beijing huaketai biology have not yet entered the capital market. It is worth noting that Beijing huaketai biology disclosed the gem IPO prospectus in 2019, but finally withdrew its application.
In March 12th, Guangzhou Wondfo Biotech Co.Ltd(300482) ( Guangzhou Wondfo Biotech Co.Ltd(300482) ) issued a statement that recently, the New Coronavirus (2019-nCoV) antigen detection kit (colloidal gold method) developed by the company has changed the approval documents of medical devices. It has been found that some individuals and companies have illegally sold and publicized through electricity providers and other online channels without the legitimate authorization of our company.
In the statement, Guangzhou Wondfo Biotech Co.Ltd(300482) emphasized that the products of the company could not be used solely for the diagnosis of New Coronavirus infection. The infection status should be judged by combining nucleic acid detection, imaging and other diagnostic information, medical history and contact history. The positive results can be used for early shunting and rapid management of suspected populations, but positive results only indicate that New Coronavirus antigen exists in the samples, which can not be used as a diagnostic basis for New Coronavirus infection. Negative results can not exclude New Coronavirus infection, nor should it be used alone as a basis for treatment and disease management decisions. Further nucleic acid testing should be carried out for antigen positive and negative results of suspected people.
Guangzhou Wondfo Biotech Co.Ltd(300482) said that the company strictly manages the sales of the medical device products. Without the legal authorization of the company, it is not allowed to sell to the outside world or carry out false publicity activities. The company reserves the right to report the case to the relevant public security departments and investigate the corresponding legal liabilities of the above-mentioned individuals and companies who claim to be able to sell covid-19 antigen detection products developed by our company through e-commerce and other online channels without the legal authorization of our company.
Zhang Wenhong, head of the clinical treatment expert group of covid-19 pneumonia in Shanghai and director of the infection department of Huashan Hospital Affiliated to Fudan University, said in an interview that the antigen is like the “clothes” worn outside the virus, and the nucleic acid is the gene inside the virus.
The two tests are slightly different. The detection method of antigen is to test clothes from antibodies. After synthesizing the specificity, the virus can be displayed; Nucleic acid detection is more complex and needs to be completed by amplification. Because with the amplification link, the sensitivity of nucleic acid detection will be higher, but the corresponding time to obtain the results will be longer.
Zhang Wenhong said that in the first stage of China’s anti epidemic, the rapid battle through nucleic acid detection has achieved “zero”, but recently we have also found that after the Omicron mutant came out, the overall speed of virus transmission is accelerating, not only in Shanghai, including other parts of the country, there are more patients in different regions, but also the speed of virus transmission is very fast in a short time.
“At this time, we will find that if the detection speed only depends on nucleic acid, it will be difficult.” Zhang Wenhong said that because nucleic acids need to borrow machines, and there is a very professional system for sampling requirements and machine amplification, if sampling in this place is inconvenient or there are no suitable conditions for amplification, is there a simpler method?
He said that just like detecting pregnancy with a pregnancy test stick at home, antigen detection can be carried out at home, and the speed is very fast. It can also be detected in hospitals with poor conditions, and the cost is relatively low.
But he also said that the sensitivity of antigen detection is slightly worse than that of nucleic acid detection. “At the beginning of infection, the amount of virus is very low, and nucleic acid detection may be detected, because nucleic acid detection has an amplification process, and antigen detection may not be detected.”
Zhang Wenhong explained that compared with antigen detection, nucleic acid detection will be more accurate, so nucleic acid detection is still the basis for the diagnosis of covid-19 virus infection, and antigen detection is used as a supplementary means for screening. If the antigen test is positive, the diagnosis can be basically made, but if it is negative, more tests can also improve the sensitivity and positive rate, or finally make the diagnosis through nucleic acid test. Due to the convenience of antigen detection, it can be detected without going to the hospital, which is conducive to improving the ability of “early detection”.
He admitted that isolation observers can pass the antigen test. If the antigen test is positive, there is no need to do nucleic acid test. If the antigen test is negative for several consecutive days, the risk of infection is very low; Home quarantine personnel or those who suspect that they are at risk of infection can also take antigen test. Once the antigen test is positive, they should immediately report to the relevant departments, and generally conduct nucleic acid test for confirmation.
Zhang Wenhong believes that among the patients infected with Omicron at present, there are more asymptomatic infected people. Under the principle of “clearing” in the pursuit of social prevention and control, we need to strengthen nucleic acid screening in order to screen asymptomatic infected people. When nucleic acid collection is inconvenient and resources are insufficient, antigen detection is a good supplement. Through citizens’ home self inspection, it helps relevant departments to find infected persons faster and isolate them, so as to speed up the “zeroing” of social aspects.
Zhang Wenhong further said that in the future, China must have more diversified and rapid detection methods in order to achieve a larger scale of international opening up and always control the virus at a very low transmission level in the face of the risk of potential imported cases. Only when the detection quantity is guaranteed and the detection speed is accelerated, can we find the virus as early as possible, take isolation measures in time, reduce the transmission risk, and realize the “zero” of the social aspect at a faster speed.
leaving Shanghai requires a 48 hour nucleic acid negative report
Shanghai covid-19 pneumonia epidemic prevention and Control Leading Group Office released a message: according to the current epidemic prevention and control situation, in order to effectively block the spread of the epidemic, the relevant measures to further strengthen the epidemic prevention and control are hereby notified as follows: citizens do not leave Shanghai unnecessarily, and those who really need to leave Shanghai must hold a negative nucleic acid test report within 48 hours, Those who come to and return to Shanghai must have a negative nucleic acid test report within 48 hours before arriving in Shanghai. This Circular shall come into force as of the date of promulgation, and the termination date shall be announced separately.
take out brother’s message moved the whole city
Morning of March 12
Shenzhen health commission public No
A message from a delivery boy
Within a few hours, the number of likes reached nearly 30000
During this period
In order to meet the needs of epidemic prevention and control
All takeout and express delivery cannot be delivered directly to the door
But this delivery boy
more nostalgic for the past
he hopes to deliver the takeout to the customers personally
hope everything will return to normal
12 noon
The reporter contacted
This delivery boy who moved the whole city
His name is “Tian Meng”
From Tieling, Liaoning
I’ve been a takeout for more than two years
In an interview with reporters
Tian Meng said that although contactless delivery is convenient for takeout staff
But this convenience is based on the inconvenience of everyone
So I don’t feel relaxed for a long time
I hope to restore my previous life as soon as possible
