(Fighting against New Coronary Pneumonia) Experts explain: the virus in inactivated vaccines is non-infectious and the vaccination process can be assured
China News Service, Beijing, January 26 (Reporter Li Chun) "If an inactivated vaccine is spilled during the vaccination process, it may indeed be positive for viral nucleic acid when tested in the environment." Cao, deputy director of the Department of Infectious Medicine, Peking Union Medical College Hospital Wei said in an interview with a reporter from Chinanews.com, "But it is inactive, so it is not pathogenic. This can be assured during the vaccination process."
The Chinese Center for Disease Control and Prevention recently issued the "Technical Recommendations on Environmental Specimen Monitoring of New Coronary Vaccination Units", stating that some provinces in China have recently detected positive for the new coronavirus nucleic acid in environmental samples collected and tested by the new coronavirus vaccination unit, and preliminary judgment is made of viral nucleic acid. Derived from vaccine fluid.
The technical advice clearly states that since the viral nucleic acid in the inactivated vaccine has no activity, it is not infectious.
"The virus in the new coronavirus inactivated vaccine is not contagious" also became the top topic on the Weibo hot search list.
"Everyone can rest assured, because it is an inactivated vaccine." Fu Hua, a professor at the School of Public Health of Fudan University, also said that a positive nucleic acid test and a virus are two different things.
Although the new coronavirus inactivated vaccine contains viral nucleic acid, it is no longer active and infective.
"PCR (polymerase chain reaction) testing can find nucleic acid or genetic material, but it cannot distinguish whether it is a complete, live virus or a defective virus fragment with only genetic material." Cao Wei said, throat swab, The same is true for the nucleic acid test of anal swabs. A positive result indicates that a fragment of the virus has been detected, but it is not known whether it is an infectious, complete, and viable virus.
The technical advice issued by China Disease Control also pointed out that during the vaccination process, the vaccine solution may contaminate the surface of the staff’s clothing, gloves or their personal items and cause a positive nucleic acid test in the contaminated area.
Although there is no report of a positive nucleic acid test in nasopharyngeal swabs caused by aerosol caused by the inhalation of vaccine liquid, there is still need for attention and research evaluation.
Cao Wei said that even though the virus in the vaccine is not active, it is still necessary to manage the vaccination process and vaccination equipment to avoid interference with subsequent environmental monitoring.
There are also new requirements for the management of the vaccination environment, including how to prevent the viral nucleic acid from the vaccine liquid from affecting the surrounding environment during the vaccination process, and some new operating procedures have been proposed.
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