The new coronavirus nucleic acid test can only be done after 48 hours of vaccination, but in the case of other vaccines, the new coronavirus nucleic acid test can usually be done on the same day.
This is because the inactivated New Crown virus vaccine is prepared by virus culture, inactivation and other processes, the virus has lost its infectivity and pathogenicity, but still retains a relatively intact nucleic acid fragment of the virus.
During the vaccination process, opening the vaccine vial, drawing vaccine liquid, syringe venting, and liquid residue in the syringe or vaccine vial after vaccination may contaminate the surfaces of objects such as vaccination tables, walls, door handles, corridors, clothing of vaccinators and vaccinees at the vaccination site in a liquid or aerosolized form, and the current use of the polymerase chain reaction assay, which is extremely sensitive, such that if sampling is performed before the nucleic acid fragments are degraded, a very It is likely that the nucleic acid test result will be positive.
In case of other vaccines, since the vaccine does not contain the nucleic acid sequence of the novel coronavirus pathogen, nucleic acid testing can usually be performed on the same day without affecting the nucleic acid results.
It is recommended to consult the local vaccination center or service center to clarify the timing of the nucleic acid test according to the actual situation.