Common vaccines that require three doses include the new coronavirus vaccine, hepatitis B vaccine, and HPV vaccine. Depending on the type of vaccine, it is necessary to determine whether it is possible to do nucleic acid after the third vaccination.
1. New coronavirus vaccine: The new coronavirus inactivated vaccine is made through inactivation and other processes, although the virus has lost its pathogenicity and infectivity, it still retains a relatively complete nucleic acid fragment of the virus.
Therefore, if sampling is done before the nucleic acid fragment is degraded, it may result in a positive nucleic acid test result. Therefore, it is recommended that nucleic acid testing be performed at an interval of 48 hours. Except for inactivated vaccines, other types of vaccines can be tested for nucleic acid at any time after the three injections without affecting the results of the nucleic acid test.
2. Hepatitis B vaccine: it is a biological preparation, belonging to the anti-hepatitis B virus vaccine, and the main component is hepatitis B virus surface antigen. After vaccination, it can stimulate the immune system to produce protective antibodies. Hepatitis B vaccination has no effect on the results of nucleic acid test.
3. HPV vaccine: HPV vaccine is a vaccine against human papillomavirus infection and cervical cancer, and it will not affect the results of nucleic acid test after the third shot of HPV vaccine.
If you have just received the third dose of vaccine, you can consult your local immunization department for the results of the nucleic acid test.