This article is from WeChat official account:Interface News (ID: wowjiemian)< span class = "text-remarks">, author: Yi Ming original, thematic map from: vision China
On February 20, CCTV’s press release about the new crown vaccine “one question to the end”, which once again clearly mentioned: vaccination can reduce the risk of infection to a certain extent, but no vaccine can protect it. Reach 100%. In other words, nucleic acid testing is still required after the new crown vaccine.
On this issue, Shanghai (Affiliated to Fudan University) Public Health Clinical Center Party Secretary Lu Hongzhou told Jiemian News reporters that the new crown vaccine is still needed Nucleic acid testing is considered from two aspects.
First, the protection rate of the new crown vaccine cannot reach 100%. Therefore, although the new crown vaccine can reduce the rate of infection with the new crown, it cannot be “absolutely safe.”
Second, the new crown inactivated vaccine is gradually effective after a period of time after the second dose. However, everyone’s physique is different, and it is not certain when it will take effect. Therefore, it is still necessary to conduct nucleic acid testing in accordance with local epidemic prevention policies.
However, there are still service platforms that equate vaccination with the new crown vaccine to nucleic acid testing. According to an announcement issued by the online car-hailing platform Didi Travel, since January 13, drivers who have not been vaccinated in Beijing will need to have a negative nucleic acid test certificate within the validity period of 7 days before they can take orders online.
This shows that Didi Travel’s requirements for its platform drivers are: either vaccinate against the new crown vaccine or do nucleic acid testing.
Picture source: Didi Travel
The sales director of an online car-hailing company told Jiemian News that due to the short validity period of nucleic acid testing, most of his company’s Drivers working on the “Travel” platform will choose to be vaccinated instead of nucleic acid testing.
However, in fact, vaccination with the new crown vaccine is not completely equivalent to a negative nucleic acid test. “Didi Travel” responded to the interface news reporter on this issue. The “Didi Travel” APP interface will also display whether the driver has completed the nucleic acid test and whether the driver has been vaccinated. The current requirements for online ride-hailing drivers are indeed the case. Follow-up requirements will follow To determine the requirements of the epidemic prevention department.
Existing data prove that the protective effect of the new crown vaccine is not 100%.
On December 30, 2020, Sinopharm China Bio-Beijing Company released the interim analysis data of the Phase III clinical trial of the new coronavirus inactivated vaccine. The data results show that the safety of the new coronavirus inactivated vaccine of Sinopharm China Bio-Beijing Co., Ltd. is good after vaccination. After two injections according to the immunization program, the vaccinated persons in the vaccine group all produced high-titer antibodies, and the neutralizing antibody positive conversion rate was 99.52% , The protective effect of the vaccine against diseases caused by new coronavirus infection (COVID-19) is 79.34%.
Clinical studies have also shown that antibodies generally begin to be produced 7 days after the first dose of the new crown inactivated vaccine, and the positive rate of antibodies is about 60% to 90% after 14 to 28 days; the positive rate of antibodies is 90% after 28 days of the second dose % Above and form continuous protection.
As for how long the protection lasts, Sinopharm once issued an announcement stating that according to the Phase I/II clinical study of the new crown inactivated vaccine, observation data for more than 6 months showed that the antibody is still maintained at a high level. It has been more than 9 months since the earliest volunteers were vaccinated, and the antibody still remained high. The final conclusion still needs further research and data support.
Therefore, the current COVID-19 vaccination does not mean “absolute safety”. It is still necessary for some industry practitioners to conduct regular nucleic acid tests.
This article is from WeChat official account: Interface News (ID: wowjiemian) , Author: Yi Ming original