A 3D scan of CCP virus particles released by Nanographics laboratory in Vienna, Austria on January 20.
In response to the positive nucleic acid in the environment of desktops, walls, door handles and corridors of the CCP virus vaccination units (injection rooms, detention rooms and external corridors, etc.), the CDC said that the initial determination was that the viral nucleic acid in the CCP virus vaccination environment originated from the vaccine vials. The viral nucleic acid in the inactivated vaccine is not infectious because it is no longer active.
According to a Reuters report today, the environment of the CCP virus vaccination unit appeared positive for nucleic acid, which the CDC said was not contagious. According to a notice issued by the CDC on Sunday evening, the Institute of Viral Diseases of the CDC conducted nucleic acid tests on environmental samples collected from some provinces and cities from vaccination units against the CCP virus, and the results showed that “environmental samples from the desks, walls, door handles and corridors of vaccination units (injection rooms, observation rooms and external corridors, etc.) were positive for the CCP virus.
The positive environmental samples and the residual fluid in the vaccine vials were sequenced simultaneously for the whole genome of the CCA virus. The results showed that the viral genome sequences in the environmental samples were consistent with those of the vaccine strains tested in the vaccine vials, and the genomic variant site composition was significantly different from that of the current prevalent strains. It was tentatively determined that the viral nucleic acids in the CCP virus vaccination environment originated from the vaccine solution.
According to the official explanation, during the vaccination process, the vaccine fluid may have tested positive for nucleic acid at the contamination by contaminating staff clothing, gloves or the surfaces of their personal belongings. “Although there have been no reports of positive nucleic acid tests on nasopharyngeal swabs caused by aerosol inhalation of vaccine fluid by staff members, concerns and research assessments are still needed.” The notice said.
Inactivated vaccines from China National Pharmaceutical Group and Kexing Biologicals are currently being used in China’s vaccination program, Reuters said.
Benjamin Cowling, an infectious disease expert at the University of Hong Kong, confirmed the possibility of contamination from the vaccine solution and said there was “no cause for concern” about the viral nucleic acid. The CDC’s recommendation for environmental specimen monitoring in vaccination units is that, given that the vaccination of the CCP virus in vaccination units will continue for some Time, the risk of vaccination sites being contaminated with vaccine nucleic acid is high, and routine monitoring of the vaccination environment will interfere with early warning of outbreak surveillance, so routine environmental specimen collection and nucleic acid testing in vaccination units is not recommended.
According to Reuters, CDC also recommends reducing the number of people accompanying vaccine recipients, keeping the environment of vaccination units clean, enhancing ventilation, and doing routine cleaning and disinfection according to specifications.
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